Australian civil tendering runs on a vocabulary that nobody teaches. It is absorbed on the job, which means most contractors know what a term means in the context they first met it and are less certain what it means in a different contract, a different state, or a different stage of the work.
Some of those uncertainties are expensive. The difference between a provisional sum and a provisional quantity decides where your margin sits. The difference between a qualifying cause and a compensable cause decides whether a delay pays. The difference between remeasurement and a variation decides whether you need to give notice at all.
How to use this glossary
Definitions here describe general Australian civil construction usage. Your contract governs. Standard forms are routinely amended by special conditions, and a defined term in your contract displaces the ordinary meaning entirely — so where a term matters to a claim, read the definition in your executed contract rather than relying on this page.
Where a term has a guide behind it, the entry links to it.
A
| Absolute accuracy | How closely a survey or model sits on the real-world coordinate system, as opposed to how consistent it is within itself. Only absolute accuracy allows comparison against a design surface or another party’s data. More |
| Acceleration | Speeding up work to recover or avoid delay. Directed acceleration is instructed by the principal and generally compensable; constructive acceleration is where you accelerate because an extension you were entitled to was refused. More |
| Acid sulfate soils | Soils and sediments that generate sulfuric acid when disturbed and exposed to air, common in coastal, estuarine and floodplain ground. Where they are present the specification carries a management plan, neutralisation and validation testing — none of it incidental to the rate. More |
| Acquittal | The process by which a grant recipient demonstrates to the funding body that the money was spent on what it was granted for, by a fixed date. On grant-funded council work the acquittal date is why the completion date is not negotiable and why variations meet unusual resistance. More |
| Addendum | A formal change or clarification issued to all tenderers during the tender period. Addenda form part of the tender documents and must be acknowledged. |
| Adjudication | The statutory dispute process under security of payment legislation, producing a rapid, enforceable determination of a payment claim. More |
| Adverse action | Action taken against a worker because they exercised a workplace right, such as raising a pay or safety concern or engaging with a union. A general protections matter in which the burden may operate against the employer — see right of entry and unions on civil sites. |
| Aggregate trailer mass (ATM) | The maximum laden mass a trailer may carry as rated by its manufacturer, including the share transferred to the towing vehicle. A regulatory mass limit is a ceiling, not a permission — where ATM is lower, ATM governs. More |
| AIP / CAIP plan | Australian Industry Participation plan. Required on Commonwealth procurements at or above $20 million (GST inclusive), directed at giving Australian businesses full, fair and reasonable opportunity to bid. More |
| Airside / landside | The divide at an airport or port. Airside is past the security barrier where aircraft or vessels operate: access is controlled, plant movement is authorised or escorted, and works run to the operator’s safety procedures. Landside is ordinary civil work with ordinary access. The same scope costs materially more on the airside of the line. More |
| Alternative Compliance Accreditation (ACA) | The upper tier of the Heavy Vehicle Accreditation scheme, open only to operators already holding General Safety Accreditation. ACA–Fatigue allows work and rest hours other than Standard; ACA–Mass unlocks Higher Mass Limits and Performance Based Standards. Replaced the NHVAS fatigue and mass modules from 1 August 2026. More |
| Alternative Compliance Hours (ACH) | The work and rest limits a driver may run under when their operator holds ACA–Fatigue. Replaced Basic and Advanced Fatigue Management for new entrants from 1 August 2026; existing BFM and AFM accreditations run to expiry and do not convert automatically. More |
| Annexure | The schedule to a standard-form contract carrying the project-specific particulars — dates, rates, periods, insurance limits, and the lists that define qualifying and compensable causes. Frequently where the real risk allocation lives. |
| Anti-flotation | The design measures that stop an empty below-ground structure being lifted by groundwater — usually structure mass, a projecting base slab and the weight of backfill over it, which makes the backfill part of the structure. More |
| Appointed party | Under ISO 19650, the party appointed to deliver information — for a construct-only civil contractor, that is you. The term matters because it fixes your obligation as delivering specified information into someone else’s system, rather than producing or coordinating the model. More |
| Apportionment | Splitting a single input between uses that are treated differently — most often fuel between on-road, off-road and auxiliary use for a fuel tax credit claim. The method must be fair, reasonable, written down and applied consistently between periods; an undocumented apportionment is treated as no apportionment. More |
| Approach to market | Any process by which a buyer invites offers — an RFT, RFQ, EOI or RFP. More |
| Apron | A slab at the inlet or outlet of a culvert that protects the bed from the concentrated flow leaving the structure. More |
| AS 2124 | Australian Standard general conditions of contract (1992), still widely used by councils and agencies, usually amended. Variations at clause 40, latent conditions at clause 12, extensions of time at clause 35.5. More |
| AS 4000 | Australian Standard general conditions of contract (1997), construct-only. Variations at clause 36, latent conditions at clause 25, extensions of time at clause 34. More |
| AS 4902 | Australian Standard general conditions for design and construct contracts. More |
| As-constructed data | The record of what was actually built, captured progressively and delivered in a specified format and schema. Distinct from WAE drawings, which are a drawing set at handover: as-constructed data is a survey and attribute obligation running through the job, and is the requirement most often underestimated in a digital engineering scope. More |
| ASIC / MSIC | Aviation Security Identification Card and Maritime Security Identification Card — the background-checked identity cards required to work unescorted in the secure areas of a security-controlled airport or regulated port. Not the corporate regulator of the same initials. Cards take time to issue, and that lead time belongs in your program. More |
| Asphalt category | In Queensland, a distinct prequalification stream alongside road and bridge. More |
| Asset management plan | A council or authority document setting out what infrastructure it owns, its condition, the renewal forecast and the funding gap. Published, and the closest thing to a forward order book in council work — see asset management plans and whole-of-life cost. |
| Asset owner | The utility, authority or landowner that owns a buried or overhead asset and sets the conditions under which you may work near it — exclusion distances, permits, supervision and approved-contractor requirements. Its requirements bind you independently of the principal’s contract. More |
| Atmospheric testing | Measuring the atmosphere in a confined space before and, where required, during entry — oxygen level, flammability and the specific contaminants credible for that asset. Taken from outside, through the full depth, because gases stratify. More |
| Auger boring | A trenchless method in which a casing is jacked forward while an auger removes spoil inside it. Suited to short crossings in stable ground; steering is limited, so it is not a method for anything that must hold a tight grade. More |
| Austroads NPS | The National Prequalification System for Civil (Road and Bridge) Construction, administered by the state and territory road agencies, using R and B categories and financial levels. More |
| Authorised deposit-taking institution (ADI) | The class of institution a contract normally requires a bank guarantee to be issued by, sometimes with a minimum credit rating attached. Check the requirement before your bank issues the instrument — a guarantee in the wrong form can be rejected after award. More |
| Auxiliary equipment | Equipment mounted on a heavy vehicle and powered by its fuel but not used to propel it — tipper hoists, agitator drums, pumps and PTO-driven gear. The fuel powering it is not fuel used for travelling on a public road, so it attracts the higher credit rate even while the truck is on the road. More |
| Availability (plant) | The proportion of time a machine is capable of working when wanted, reduced by breakdowns, servicing and waiting for parts. Distinct from utilisation, and the number that determines whether your hourly rate is real — see plant maintenance and availability. |
| Axle group | A set of axles treated as a single unit for mass limits — tandem, tri-axle, quad. A truck inside its gross limit can still be overloaded on an axle group, which makes it a loading-technique failure rather than a quantity one. More |
B
| B category | Bridgeworks prequalification category under the national system, B1 to B4 in ascending complexity, held independently of any R category. More |
| Back-propping | Props reinstalled under a structural element after formwork is stripped, carrying a calculated load through a designed sequence until the concrete reaches full strength. Removing them early transfers load to a section that cannot take it. More |
| Back-to-back | A subcontract drafted to pass the head contract’s obligations down. The terms that most often bite are compressed notice periods and uncapped liquidated damages. More |
| Bank guarantee | An unconditional undertaking from a bank, given as contract security instead of cash retention. Its return is generally a contractual question rather than a payment claim. More |
| Basis of estimate | The written record of the assumptions a tender price rests on — production rates, crew sizes, plant, working hours, weather allowance and material sources. The document the delivery team needs most and most often never sees. More |
| Bedding (culvert or pipe) | The prepared material a pipe or culvert is founded on. It is part of the structural design, not a levelling course, and the load the unit can carry depends on it. More |
| Before You Dig Australia (BYDA) | The national referral service that requests underground asset plans from participating owners. It is a referral mechanism, not a location service: plan accuracy is the issuing owner’s, and private, abandoned and unrecorded assets are not covered. More |
| Bid security / tender bond | Security lodged with a tender, forfeitable if the tenderer withdraws or fails to execute the contract. Uncommon on small civil work. |
| Bill of quantities (BOQ) | A measured schedule of every element of work, in standardised units, so all tenderers price the same scope. More |
| Bored pile | A pile formed by drilling a hole, placing reinforcement and pouring concrete in place, with casing or fluid support where the hole will not stand. Suits variable ground and sites where vibration is unacceptable; generates spoil that has to be classified. More |
| Borrow pit | A pit worked to win material for use on a specific project, usually under that project’s approvals. The lowest-commitment alternative to becoming an extractive operator — see owning a pit. |
| Bulking | The volume increase when in-situ material is excavated. Whether the measurement rules allow for it decides whether the bulking factor is your cost. More |
| Bump test | A quick functional check that a gas detector responds to a known test gas. Distinct from calibration, done far more often, and the step most likely to be skipped on a busy morning. More |
| Bund | An impermeable containment around a storage tank, sized to hold a proportion of the contents. Self-bunded tanks build it in; a site-built bund full of rainwater has no capacity left — see bulk fuel storage and dangerous goods. |
| Buoyancy (uplift) | The tendency of an empty below-ground structure to float in a high water table. Designed against, but the resistance often depends on construction-stage conditions, so dewatering may have to continue until backfill or slab work is complete — see treatment plant civil works. |
| Business activity statement (BAS) | The periodic return through which a business reports GST and claims fuel tax credits. Credits are claimed in litres at the rate applying when the fuel was acquired, so a BAS spanning a rate change has to be split. More |
| Buy-out | The difference between what a package was allowed for in the tender and what it was actually let for. The earliest reliable indicator of how a job will finish, and only meaningful when the two figures cover the same scope. More |
C
| Capability statement | A short document setting out what your business does, its people, plant, projects and credentials. The most reused document a civil SME owns. More |
| Carbonation | The process by which atmospheric carbon dioxide progressively neutralises the protection concrete gives embedded reinforcement, advancing from the surface inward. One of the two main drivers of reinforcement corrosion. More |
| Cathodic protection | An installed and monitored electrochemical system, galvanic or impressed current, used to arrest corrosion of reinforcement in chloride-contaminated concrete. More |
| CEMP | Construction Environmental Management Plan — the scored environmental returnable. More |
| Chain of responsibility (CoR) | The principle in Australian heavy vehicle law that every party influencing a transport task — loader, scheduler, consignor, consignee, prime contractor — holds a safety duty, not just the driver. It attaches to what you do rather than to whether you own trucks, and extends personally to executives. More The duties were substantially amended on 1 August 2026 — see the 2026 HVNL changes. |
| Channel shutdown | The period between irrigation seasons when a channel is dry and work on it is possible. Announced by the water operator, fixed by the re-watering date, and the constraint that sets the entire programme on rural water civil works. |
| Chloride attack | Reinforcement corrosion driven by chloride ingress from seawater, salt spray or contaminated materials. Produces aggressive local pitting that can be severe while the surface still looks sound. More |
| Claims history | The record of claims made against your policies. Insurers weight it heavily at renewal: it is the largest single driver of what you pay next year and, past a point, of whether particular cover remains available at all. More |
| Cold joint | An unplanned joint formed when one layer of concrete sets before the next is placed against it. A defect, and the reason sustained supply rate matters on a large pour. More |
| Common data environment (CDE) | The single agreed platform through which project information is issued, shared, reviewed and approved. On a digital engineering job the CDE is where the obligation is actually discharged — submitting through it, in the required naming and status conventions, is the deliverable. More |
| Compensable cause | A delay event that entitles you to delay costs as well as time — principally acts, defaults or omissions of the superintendent, principal or their consultants and other contractors. Contrast qualifying cause. More |
| Compliance matrix | A table at the front of a tender response mapping each criterion and sub-part to the page where it is answered. Useful to an evaluation panel, and a cheap signal that the submission was assembled with discipline. More |
| Concessional mass limits (CML) | Historical. A mass concession above general limits that required mass management accreditation to use. From 1 August 2026 general mass limits were lifted to the former concessional levels and CML was removed as a separate category, so those masses are now available without accreditation. More |
| Concrete cover | The specified distance between reinforcing steel and the concrete surface. It is the durability design, varies with exposure classification, and is verified at the pre-pour inspection and afterwards with a cover meter. More |
| Concurrent delay | Where two delays overlap, one the principal’s responsibility and one yours. Typically preserves your extension of time and removes your entitlement to delay costs. More |
| Condition precedent | A requirement that must be satisfied before an entitlement arises. Where notice is a condition precedent, late notice can extinguish an otherwise valid claim entirely. |
| Conduit proving | Rodding or mandrelling an installed electrical conduit before it is covered, to confirm it is clear and can be pulled. A blocked conduit found after the pavement is on is an excavation. More |
| Confined space | An enclosed or partially enclosed space, not intended primarily to be occupied, at normal atmospheric pressure, that presents a risk from atmosphere or engulfment. Defined by characteristics rather than by depth or by what the space is called. More |
| Conforming tender | A tender that meets all mandatory requirements. A non-conforming tender may be excluded before evaluation begins. |
| Constructive variation | A change to the work that nobody labelled as a variation — a revised drawing, an RFI response, an access restriction. More |
| Contingency | Money carried in a bid against risks that may not occur. A single percentage added at the end is invisible to the client, attached to nothing, and never released. Allowances tied to named risks can be tracked and released when the risk expires. More |
| Contingent payment mechanism | Payment conditional on performance against a commitment. In Victoria, required in project contracts from 1 July 2026 unless not practicable or appropriate. More |
| Continuous flight auger (CFA) pile | A pile formed by drilling with a hollow-stem auger and pumping concrete through the stem during withdrawal, with reinforcement placed afterwards. Fast in uniform ground; verified by monitoring data rather than by inspection. More |
| Contract sum | The price stated in the contract, before variations, remeasurement and adjustments. |
| Contractor licence | A statutory authorisation from a state or territory regulator to carry out certain building or construction work. Distinct from prequalification: a licence is legal permission to do the work, prequalification is a buyer’s assessment that you may bid for it. Holding either says nothing about whether you need the other. More |
| Controlled activity approval | A water-law approval required in some jurisdictions for works in, on or near a watercourse or on waterfront land. One of several environmental authorisations a civil job may need beyond its planning consent, and distinct from the management plan the tender asks for. More |
| Cost to complete | A judgement of what the remaining work will cost, made by the people doing it and based on achieved production rather than budget minus spend. Added to cost incurred it gives the forecast final cost, and it is the only forward-looking number in a cost report. More |
| Cost-plus | Reimbursement of actual cost plus a fee. Quantity, rate and productivity risk all sit with the principal. More |
| Counter-indemnity | The agreement you sign with a surety or bank under which it can recover from you anything it pays out under a bond or guarantee. Frequently broader than contractors expect, and worth reading before the instrument is issued rather than after it is called. More |
| CPR | Commonwealth Procurement Rules — the framework governing Australian Government procurement. More |
| Critical path | The sequence of activities determining the completion date. Only delay to the critical path delays the project — and only critical delay supports a time claim. More |
| CUA | Common Use Arrangement — a whole-of-government standing offer, used particularly in Western Australia. More |
| Cultural heritage duty of care | A general statutory obligation not to harm Aboriginal cultural heritage. It applies whether or not a site appears on any register and whether or not the principal holds an approval, it sits on the contractor personally, and a contract can allocate the cost but not the duty. More |
| Cultural heritage management plan (CHMP) | An approved plan setting out how works proceed where Aboriginal cultural heritage may be affected — monitoring, exclusion zones, inductions and the procedure for unexpected finds. Where one exists it binds the contractor doing the work. More |
| Cured-in-place pipe (CIPP) | A pipeline renewal method in which a resin-impregnated liner is inserted into the existing pipe and cured to form a new pipe inside it. Renews a gravity line between pits without excavation, at a small loss of diameter. More |
| Cut-off level | The level to which a completed pile is trimmed before the cap is constructed. Breaking down to cut-off and removing the debris is real work and a real cost, and is routinely left out of a rate. More |
| Cutback bitumen | Bitumen blended with a cutter oil to reduce viscosity for spraying and to hold aggregate in cooler conditions. The cutter evaporates over time and the quantity used is a seal design decision. More |
D
| Date for practical completion | The contractual date by which practical completion must be achieved. Extensions move it; liquidated damages run from it. More |
| Datum | The reference frame positions are measured in — a national horizontal datum, a national vertical datum for heights, and often a local site grid related to them by a transformation. Working on the wrong one shifts everything consistently, and nothing looks wrong on the screen. More |
| Dayworks | Hourly labour and plant rates used to value work with no applicable measured rate. Price them properly — they become the default for unscheduled instructions. More |
| Deed of company arrangement | A binding compromise agreed by creditors of a company in voluntary administration, typically paying a proportion of debts. One of the outcomes examined in our guide to insolvency up the contractual chain. |
| Deemed assessment | Where a superintendent fails to assess a claim within the contractual period and the claim is treated as approved. Under unamended AS 4000 this applies to extensions of time at clause 34.5. More |
| Deemed worker | A person who is not an employee at common law but is treated as a worker under workers compensation legislation — commonly an individual contractor supplying labour who works substantially for one business. Affects both your declared wages and who can claim on your policy. More |
| Deep soil mixing | Ground improvement in which a binder is mixed into the soil in place to form treated columns or blocks. Requires specialist plant, and verification by coring and testing takes time that belongs on the programme. More |
| Defects liability period (DLP) | The period after practical completion — commonly 12 months — during which you must, and may, return to rectify defects. A minimum exposure, not a cap on liability. More |
| Delamination survey | Hammer tapping or acoustic testing to find concrete that has debonded but not yet fallen off. Routinely finds several times the visible defective area, which is why repair quantities blow out. More |
| Delay damages / delay costs | Time-related costs recoverable for a compensable cause subject to an approved extension of time. More |
| Delegation | The authority a person holds to give directions or approve expenditure, usually limited by value. A direction from someone without delegation may not bind the principal. More |
| Delivered rate | The price of a material at the point of placement: the ex-pit or ex-plant price plus freight. On quarry products freight is frequently the larger component, so changing the source moves the rate more than negotiating the material does. More |
| Delivery docket | The record issued with each load of ready mixed concrete showing mix, batch time, quantity and any water added on site. The primary evidence in any later dispute about a low test result. More |
| Digital engineering | The delivery of structured, specified project information alongside the physical work. In civil tenders it usually asks far less of a construct-only contractor than the vocabulary suggests — the obligation is to supply defined data in a defined format, not to produce or coordinate models. More |
| Director penalty notice (DPN) | A notice making a company director personally liable for certain unpaid company tax amounts. Where the amount was reported on time the penalty can generally be remitted by paying or by appointing an administrator; where it was not, it generally cannot. More |
| Director’s guarantee | A personal guarantee of a company’s performance or payment obligations, given by its directors. It puts personal assets, potentially including the family home, behind a contract. Do not give one without advice. More |
| Displacement pile | A pile installed by displacing soil sideways rather than removing it — driven and screw piles. Generates vibration and can heave adjacent ground, services and piles already installed. More |
| Disruption | Loss of productivity caused by the principal’s actions, which may not delay completion at all. Requires daily production records to prove. More |
| Document register | A record of every document received, its revision, the date issued, the date received, its source and who it was distributed to. Both a control tool and the evidence behind a variation or delay claim — see document control on a bid and a job. |
| Drawdown | The lowering of the water table produced by dewatering, extending outward from the excavation. In compressible ground it causes consolidation settlement that can damage neighbouring structures and services — see dewatering, water take and discharge. |
| Drilling fluid | The bentonite-based slurry circulated in a directional bore to remove cuttings, stabilise the hole and cool the tooling. Its pressure is what has to be monitored to prevent a frac-out, and its disposal is a waste classification question rather than a cartage one. More |
| Driven pile | A preformed concrete or steel pile hammered or vibrated to depth. The driving record gives immediate evidence of capacity; the trade-offs are noise, vibration, damage risk and lengths ordered before the depth is known. More |
| Dynamic compaction | Densifying granular fill by repeatedly dropping a heavy weight. Effective and cheap where there is room, and limited by vibration and the standoff distance from anything that matters. More |
| Dynamic pile testing | Capacity inferred from instrumented measurement during driving or on restrike. Faster and cheaper than a static load test, and normally applied to a proportion of production piles. More |
E
| Early contractor involvement (ECI) | A two-stage arrangement in which a contractor is selected on capability before there is a price, works with the client and designers through Stage 1, and constructs under Stage 2 only if terms are agreed. Stage 2 is not guaranteed — see ECI, alliances and collaborative contracting. |
| Earn-out | A sale structure where part of the price is paid later and depends on the business meeting agreed results. Common where a buyer doubts the work or the relationships will survive the founder leaving. More |
| Easement | A registered right over another party’s land for a stated purpose, defined in width and location on a plan. It permits the stated purpose only, which is why it rarely covers compounds, stockpiles or haul routes — see easements, land access and notices of entry. |
| Embodied carbon | Emissions from producing and transporting the materials in an asset, as distinct from the energy the finished asset uses. On a civil project it is dominated by concrete and steel, which means most of your footprint is in what you buy rather than what you burn. More |
| Emergency response plan | The plan a workplace must prepare, maintain and implement covering emergency procedures, notifying emergency services, medical assistance, communication and testing. On a civil site it must answer rescue, access and location questions a building plan never faces — see emergency preparedness and site rescue. |
| Employee-like worker | A category under the Commonwealth road transport and digital labour platform provisions covering workers who are not employees but perform work in a way the legislation treats as employee-like. Relevant to a civil contractor mainly through the road transport contractual chain. More |
| Engulfment | Being buried or drowned by free-flowing material such as sand, grain, slurry or water. One of the criteria that makes a space a confined space, and the reason some trenches qualify. More |
| Enterprise agreement | An agreement between an employer and its employees, approved by the Fair Work Commission, that displaces the relevant modern award while remaining subject to the National Employment Standards. It generally raises the cost base, and holding one can be a condition of access to some sites. More |
| Entrapment (EWP) | Crushing of an elevating work platform operator between the platform controls and an overhead structure. The characteristic fatal incident on boom-type machines — see working at height in civil construction. |
| Entry permit | Authorisation to enter Aboriginal land, issued by the relevant land council or land trust administrator under the statute governing that land. Issued for named people and periods, covers your subcontractors and suppliers, and carries lead time that belongs in the programme. More |
| EOI | Expression of Interest — a first-stage approach to market used to shortlist before a full tender. More |
| EOT | Extension of time. Moves the date for practical completion and relieves liquidated damages; does not by itself pay delay costs. More |
| Essential Eight | The Australian government’s baseline set of cyber security mitigation strategies, with maturity levels describing how completely each is implemented. The framework Australian tenders reference most often; most ask about alignment rather than certified maturity. More |
| Establishment / disestablishment | Mobilising to and demobilising from site. Usually a lump sum item because it is not proportional to measured quantities. More |
| Evaluation criteria | The weighted factors against which tenders are scored. More |
| Evaluation panel | The group scoring tender responses against the criteria. Routinely includes procurement, finance and asset staff as well as engineers, which is why jargon that is precise to a contractor can cost marks. More |
| Excavation permit | The site-level authorisation to break ground at a nominated location. A permit that works names the quality level of service information held, defines permitted plant by zone, and carries a stop rule for anything found that is not on the plans. More |
| Exclusion zone (plant) | An area around operating plant that people must not enter, sized from the machine’s slew, reach and travel rather than by habit, and moved as the machine moves. The practical form of isolating people from plant — see plant and pedestrian separation. |
| Exposure classification | The durability category assigned to a concrete element based on its environment. Drives minimum strength, binder content and cover, and frequently sets a higher grade than the structural design needs. More |
| Extractive operation | A regulated quarry or pit operation, requiring resource, planning and environmental approvals, royalty payment, a rehabilitation bond and in most jurisdictions a mine or quarry safety regime — see owning a pit. |
F–G
| Fall arrest | A system that stops a fall after it has begun, using a harness, lanyard and rated anchor. Fourth in the order of fall controls, requires adequate clearance below and a rescue plan, and is frequently unsuitable at the low heights typical of civil work — see working at height. |
| Falsework | The temporary structure that carries formwork, wet concrete and construction loads to the ground. Its failures are collapses rather than blowouts, and the usual cause is the foundation nobody engineered. More |
| Fatigue-regulated heavy vehicle | Broadly, a heavy vehicle over 12 tonnes gross vehicle mass, to which the work diary and work and rest hour rules apply. Note the distinction from the unfit-to-drive duty, which since 1 August 2026 applies to every heavy vehicle over 4.5 tonnes. More |
| Fauna spotter-catcher | A person licensed under state law to handle protected animals, present during clearing where an approval requires it. They inspect ahead of the machine, capture and relocate animals, and have authority to stop work — see clearing, fauna and threatened species. |
| Final certificate | Issued at the end of the defects liability period, generally conclusive of the parties’ positions. Read it on arrival and note the window to dispute. More |
| Final claim | The last claim on the contract — outstanding variations, remeasurement, provisional sum adjustments and release of security. More |
| Financial level | Under the national prequalification system, the assessed maximum contract value you may undertake, from F0.25 to F100 Plus, in millions of dollars. More |
| Fitness for work | The broader concept behind a drug and alcohol policy: whether a worker is fit to start a shift at all, covering medication, fatigue, heat and acute medical conditions as well as alcohol and other drugs. As an operator’s shift-entry regime — testing, fatigue management and medicals — it is standard on resources sites, where it is a priced cost line rather than an overhead. Increasingly the term clients use in prequalification. See drug, alcohol and fitness for work and mining and resources civil works. |
| Float | Spare time in a programme before an activity affects the completion date. Delay absorbed by float is not critical delay. More |
| Formwork | The temporary mould that contains and shapes concrete until it can support itself. It is engineered temporary works designed against a specific pour sequence and rate, and is normally deemed included in the concrete rate. More |
| Founding level | The level at which a pile achieves the required capacity. Whether it is scheduled and remeasured, or a condition to be achieved at the contractor’s risk, is the single most consequential clause in a piling package. More |
| Frac-out | The escape of drilling fluid to the surface or into a waterway during a directional bore, usually through a weakness in the overlying ground. The signature HDD risk: an environmental incident with notification obligations, not merely a construction problem. More |
| Front-end loading | Weighting rates towards early items in a schedule of rates to improve cash position. Ordinary commercial practice that clients routinely check for, and distinct from unbalanced bidding against expected quantity changes. More |
| Fuel excise | The Commonwealth duty imposed on every litre of fuel at manufacture or import. A fuel tax credit returns it where the fuel is used for an eligible business purpose. Excise is indexed twice a year and can be varied by government — it was cut temporarily in 2026, which moved the credit with it. More |
| Fuel tax credit | A credit returning fuel excise where fuel is used for a business purpose off public roads. Claimed on the business activity statement in litres at the rate applying when the fuel was acquired — see fuel tax credits for civil contractors. |
| General mass limits (GML) | The mass a heavy vehicle may carry on general access routes without a permit, notice or accreditation. Raised on 1 August 2026 to the former concessional levels — roughly a tonne for combinations up to 55 tonnes gross. The manufacturer’s GVM, GCM and ATM ratings still bind first. More |
| General Safety Accreditation (GSA) | The foundation tier of the Heavy Vehicle Accreditation scheme: an audit confirming the operator’s safety management system complies with the SMS Standard. Nothing else in the scheme is available without it. More |
| General security agreement | Security taken over all present and after-acquired property of a business rather than over one asset. Given to a plant financier for a single machine, it encumbers the debtors that working capital lending relies on and can block the facility needed to fund the next contract. More |
| Geogrid | An open-aperture polymer grid used to stabilise subgrade, reinforce pavement layers or form reinforced soil structures. Works by interlock, so aperture size must suit the aggregate, and uniaxial products have a strong direction. More |
| Geomembrane | An impermeable sheet used to line basins, dams, landfill cells and contaminated ground. The seams are the system, and installation is normally restricted to accredited installers. More |
| Geotextile | A woven or nonwoven fabric used for separation, filtration, drainage or protection. The class specified is usually driven by survivability during construction rather than by the in-service function. More |
| Ghost marking | The visible scar left after pavement marking is removed, which under headlights or in the wet can still read as a line. A genuine safety issue and a common defect item at handover. More |
| Global claim | A claim aggregating many causes into one lump sum at the end of a project. They generally fail, because a single contractor-caused item undermines the whole. More |
| GMP | Guaranteed maximum price — cost reimbursement subject to a ceiling the contractor guarantees. Carries lump sum risk above the ceiling. More |
| Go/no-go | The disciplined decision whether to bid at all. More |
| Gross combination mass (GCM) | The maximum laden mass of a towing vehicle plus everything it tows, as rated by the manufacturer. The binding limit on a combination regardless of what the axle group tables allow. More |
| Gross vehicle mass (GVM) | The maximum laden mass of a single vehicle as rated by the manufacturer. Also the threshold that makes a vehicle a “heavy vehicle” at 4.5 tonnes, and “fatigue-regulated” at 12 tonnes. More |
| Ground control point | A surveyed target on the ground, visible in aerial imagery, that ties a photogrammetric model to the project coordinate system. Points deliberately withheld from processing become check points and are the only honest test of accuracy. More |
| Ground improvement | Treating weak ground so it can carry the load, rather than transferring load past it — preload, wick drains, stone columns, soil mixing or compaction. Usually cheaper than piling for area loading, and usually slower. More |
| Ground penetrating radar (GPR) | A locating technique that images subsurface features, including non-metallic assets that electromagnetic methods cannot detect. Performance falls away in wet or highly conductive clays, and interpretation is heavily operator-dependent. More |
| Group training organisation (GTO) | An organisation that employs apprentices and places them with host businesses. Lowers the risk of an apprenticeship commitment for an employer whose workload is lumpy. More |
H–L
| Haul road | An unsealed road built and maintained for heavy haulage, common civil scope on resources sites both to construct and to maintain. Haulage distance is the variable that drives the rate, which is why a haul road priced off a council cost base rarely survives. More |
| Hazardous materials survey | The assessment completed before demolition to identify asbestos, lead, synthetic mineral fibres and other hazardous materials in a structure. It precedes any physical work and its findings can change the cost by an order of magnitude — see demolition and site clearing. |
| Headwall | The structure at the end of a culvert that retains the embankment, supports the inlet or outlet and directs flow. A retaining structure in its own right. More |
| Heat stress | Heat illness risk arising from six factors — air temperature, humidity, radiant heat, air movement, work rate and clothing — not from temperature alone. Managed under the general work health and safety duty rather than by a legislated maximum — see heat, UV and extreme weather. |
| Heavy Vehicle Accreditation (HVA) scheme | The tiered national accreditation scheme that replaced NHVAS from 1 August 2026. General Safety Accreditation is the gate; GSA–MAP, ACA–Fatigue and ACA–Mass sit above it. Everything rests on an audited safety management system rather than on separate modules. More |
| Heavy Vehicle National Law (HVNL) | The national law regulating heavy vehicles over 4.5 tonnes, in force in every state and territory except Western Australia and the Northern Territory. Substantially amended with effect from 1 August 2026. More |
| High risk work licence (HRWL) | A statutory licence required for defined classes of work such as crane operation, dogging, rigging, scaffolding and boom-type elevating work platforms above a set length. It attaches to the person and is recognised across jurisdictions — see tickets, VOCs and competency records. |
| Higher mass limits (HML) | A mass concession above general limits, available on approved routes to operators holding mass accreditation — now ACA–Mass. Unaffected by the 2026 increase to general mass limits, which did not make HML free. More |
| Hired-in plant | Plant in your possession that you do not own. A distinct insurance category that is not automatically included in a policy covering plant you own, and the most common gap between a contractor’s contractual liability and its cover. More |
| Hold point | A point in an inspection and test plan where work must stop until an inspection or test is passed and released. More |
| Horizontal directional drilling (HDD) | A trenchless method in which a steerable pilot bore is drilled along a designed arc, reamed to size, and the product pipe pulled back through. Suits pressure pipe, conduit and cable ducts; not suited to gravity lines needing tight grade. More |
| Immobiliser | A device requiring a code or fob before plant will start. The most effective single anti-theft control for earthmoving plant, and frequently a condition of insurance cover — see plant theft and site security. |
| Impacted as-planned | A delay analysis method: insert the delay event into the accepted baseline programme and show the effect on completion. Usually sufficient for SME claims. More |
| In-situ measure | Measurement of material in its undisturbed state, before excavation. Contrast loose measure. The distinction can be 20–30% of the same physical work. More |
| In-situ stabilisation | Modifying material in place with lime, cement, a blend or foamed bitumen so it performs better than it naturally would, performed by a purpose-built machine. Once binder is added there is a limited working time to mix, level and compact — see pavement stabilisation, testing and conformance. |
| Incipient anode | Accelerated corrosion immediately around a new concrete patch, caused by the repaired area becoming passive while surrounding chloride-contaminated concrete becomes anodic. The reason patch repair alone can make a chloride-affected structure worse. More |
| Insolvent trading | Incurring a debt while the company is insolvent, or becoming insolvent by incurring it, where there were reasonable grounds to suspect as much. Exposes directors to personal liability for the debt. More |
| Insurance bond | Contract security issued by an insurer or surety rather than a bank, performing the same function as a bank guarantee. Its advantage is that it does not consume bank facility capacity; its limitation is that not every principal accepts one. More |
| Integrity testing | Testing that shows whether a pile shaft is continuous and sound. It does not measure capacity, and the two are frequently confused. More |
| Interstitial space | The gap between the inner and outer walls of a self-bunded tank. A leak into it is invisible from outside, which is why it must be monitored or inspected — see bulk fuel storage and dangerous goods. |
| Intervention level | The asset condition at which a council or authority schedules treatment. Catching an asset early means a surface treatment; catching it late means reconstruction — see asset management plans and whole-of-life cost. |
| ISLP | Infrastructure Skills Legacy Program (NSW) — skills, training and diversity targets on major government infrastructure projects. More |
| ITP | Inspection and Test Plan — the sequence of verifications for an activity: what is checked, against what standard, to what acceptance criteria, by whom. More |
| Jacking shaft | The pit from which a microtunnelling or pipe jacking drive is launched, taking the reaction load of the jacks. It is temporary works with a design, and on a short crossing it can cost more than the bore itself. More |
| Labour hire licensing | Schemes operating in several states requiring labour hire providers to be licensed, and making it an offence to engage an unlicensed one. The exposure runs to the host business, not only the supplier. More |
| Latent condition | A physical site condition differing materially from what a competent contractor should reasonably have anticipated at tender, given the information available, reasonable enquiries and a site inspection. More |
| Letting schedule | The table of subcontract packages showing tendered allowance, let-by date and site start date for each. The tool that turns subletting from a series of phone calls into a managed procurement. More |
| Lift study | The documented assessment for a crane lift covering crane type and configuration, position, radius, rated capacity at that radius, ground bearing and utilisation. More |
| Liquidated damages (LDs) | A pre-agreed amount payable for each day or week of late completion, deducted without the principal proving actual loss. More |
| Liquidation | The winding up of a company and realisation of its assets for creditors. An insolvency event under most construction contracts and generally the end of prequalification. More |
| Load restraint | The requirement that a load be restrained so it cannot move enough to affect the vehicle’s stability or fall from it, assessed against national performance standards. Applies to plant on a float as much as to freight. More Performance standards unchanged by the 2026 reforms — see what did change. |
| Local Jobs First | Victoria’s local content policy framework, under which the Major Projects Skills Guarantee operates. More |
| Loss adjuster | An independent expert appointed by the insurer to investigate a claim, scope the loss and report on liability. They are not your representative — but contemporaneous records make their job faster, which makes your claim faster. More |
| Lump sum | A fixed price for a defined scope. Quantity risk sits with the contractor. More |
M–N
| Machine control | Satellite or total station positioning that shows an operator where the blade or bucket sits against a design surface, or drives it there automatically. It reduces set-out and rework but does not replace conformance survey. More |
| Mandatory requirement | A tender requirement that must be met for the tender to be considered. Failing one excludes you before evaluation. More |
| Mass haul diagram | A plot of accumulated cut against accumulated fill along an alignment, showing where material balances, which direction it should move and how far it must travel. Plot it using material volumes rather than design volumes or it shows a balance that does not exist. More |
| Measured mile | A disruption analysis comparing an undisrupted period of an activity against the disrupted period on the same job. Only possible if you measured both. More |
| Metered fuel issue | Dispensing site fuel through a meter that records volume against a plant number. The control that makes fuel loss detectable, and the same record that substantiates fuel tax credits and plant running costs — see plant theft and site security. |
| Method of measurement | The stated rules determining how quantities are measured, and therefore what each rate must cover. Matters more than the quantities themselves. More |
| Method of working plan (MOWP) | At a certified aerodrome, the document setting out how works will be carried out without compromising aircraft safety — staging, lighting, marking, plant height and what happens when an aircraft is inbound. It is approved by the aerodrome operator before work starts, and it governs the program. More |
| Methodology statement | The scored explanation of how you will build the work. More |
| Microtunnelling | A trenchless method using a remotely operated boring machine pushed from a shaft, guided by laser or gyro, with pipes jacked in behind it. The method of choice for gravity sewer and drainage where grade accuracy matters, and workable below the water table. More |
| Minimum average roll value | The basis on which geosynthetic properties are specified and certified, distinct from a typical or nominal value. Comparing a typical value against a specified minimum average roll value is not evidence of compliance. More |
| Minimum standards order | An instrument the Fair Work Commission can make under the road transport provisions of the Fair Work Act, setting binding standards in a sector that sits outside the ordinary employment relationship. The fuel cost recovery order is a related instrument in the same family. More |
| Mitigation | Steps taken to reduce a delay and its cost. Expected as part of any delay claim, and evidence of it strengthens the claim. More |
| Moderation | The meeting where an evaluation panel reconciles individual scores. Text a panel member can point at is worth more than text they have to summarise, which is why the answer belongs in the first sentence. More |
| Modern award | The industry or occupation instrument setting minimum pay and conditions where no enterprise agreement applies. Coverage turns on the work performed and the employer’s industry rather than job titles, which is why one civil crew can sit under more than one award. More |
| Modern slavery statement | The annual statement a reporting entity above the revenue threshold must publish on modern slavery risks in its operations and supply chains. Most civil SMEs are not reporting entities — the obligation reaches them contractually, through client questionnaires and supplier codes. More |
| MPSG | Major Projects Skills Guarantee (Victoria) — at least 10% of labour hours by apprentices, trainees and cadets on projects at or above $20 million. More |
| MRPV | Major Road Projects Victoria, which delivers through Construction and Design Panels tiered 1–4. More |
| Muster point | A nominated assembly location for an emergency evacuation. On a linear civil site a single muster point guarantees people walking through the hazard to reach it, so multiple named points with wardens are used — see emergency preparedness and site rescue. |
| No-go zone | The minimum approach distance to an energised overhead conductor, set by the electrical safety regulator and the network by voltage and by class of worker. It applies in three dimensions to any part of the plant, load or tools — contact is not required for injury. More |
| Non-destructive digging (NDD) | Excavation by vacuum, air or water lancing rather than by a cutting edge, so that a buried asset can be exposed without damaging it. The only technique that produces certainty about where a service actually is. More |
| Non-entry rescue | Recovering a person from a confined space without anyone else entering it, normally by harness and retrieval line on a davit or tripod. The objective of every confined space rescue plan. More |
| Non-negative result | The outcome of an on-site drug screening device indicating a substance may be present. It is preliminary only: confirmatory analysis by an accredited laboratory is required before any consequence attaches — see drug, alcohol and fitness for work. |
| Nonconformance | Work that does not meet the specification, raised and closed out through the quality system. More |
| Notice | A formal communication the contract requires, usually within a stated period and often in a stated form and to a stated address. The most common reason good claims fail. More |
| Notice of entry | Written notice given to an owner and occupier before an authority or its contractor exercises a statutory power to enter land. Requirements differ by jurisdiction and by the power relied on — see easements, land access and notices of entry. |
| Notifiable incident | A death, serious injury or illness, or dangerous incident that must be reported to the work health and safety regulator immediately. A dangerous incident is notifiable whether or not anyone was hurt — an empty trench collapsing qualifies. More |
O–P
| Off-hire | The point at which plant hire charges stop. Under most hire terms hire runs until off-hire is notified in the required manner, and often until the machine is collected — which is why a machine finished on Thursday can be charged to the following Friday. More |
| Off-site overheads | Head office and executive costs attributable to an extended contract period — commonly assessed around 3% of direct costs in prolongation claims. More |
| On-site overheads | Supervision, site facilities, amenities, services and standing plant maintained through a delay period. More |
| Onboarding | What happens to a new employee from offer to the end of the first few months. Most turnover in civil SMEs happens in this window, and a one-page checklist with a named buddy fixes most of it. More |
| Open space contribution | Money levied from development under state planning law and held for specified public open space works. Because the works are named in an adopted contributions plan, it is the most readable forward pipeline in local government. More |
| Ordinary time earnings | The earnings base on which superannuation is calculated, which is not the same as gross wages. Getting the boundary wrong repeats every pay run until someone checks — see superannuation and payroll tax. |
| Orthomosaic | A geometrically corrected aerial image that can be measured on. The reality capture product most useful to people who are not surveyors, because it looks like a photograph and behaves like a plan. More |
| Overbreak | Concrete placed in a bored pile substantially in excess of the theoretical volume. A direct cost, and a signal that the hole is not the shape anyone assumed. More |
| Overpumping | A designed temporary system that carries live flow around a pump station or sewer while it is worked on, with standby capacity, containment and continuous monitoring. Its failure is a reportable pollution incident. More |
| Overtrading | Growing turnover faster than working capital can fund it. Each new job’s wages, plant and materials are paid weeks before its first progress claim arrives, so growth consumes cash before it returns profit — which is how profitable civil contractors run out of money. More |
| Oxygen deficiency | An atmosphere with too little oxygen to sustain consciousness, commonly caused by displacement, decomposition or purging with an inert gas. Gives no warning and is a leading cause of confined space fatalities. More |
| Page limit | A stated maximum length for a tender response or a section of one. Exceeding it risks the excess being disregarded or the submission being non-conforming; meeting it by shrinking the type is the wrong answer. More |
| Panel / standing offer | A pre-established arrangement allowing a buyer to engage from a set of approved suppliers without a fresh tender for each job. More |
| Parent company guarantee | A guarantee of your performance given by a related entity, accepted by some principals in place of a bank guarantee. Costs nothing in cash or facility, and is worth precisely what the guaranteeing entity is worth. More |
| Payment claim | A claim for payment served under the contract and, where compliant, under security of payment legislation. More |
| Payment schedule | The respondent’s written response to a payment claim, stating the amount proposed and the reasons for withholding. A respondent is generally confined to the reasons stated. More |
| Payroll tax grouping | The rule treating related businesses as one for the payroll tax threshold, arising from common control, related companies or shared employees. It targets exactly the multi-entity structure most civil businesses use — see superannuation and payroll tax. |
| PC sum (prime cost sum) | An allowance for the supply of a material or product not yet selected. Installation is usually measured separately. More |
| Performance Based Standards (PBS) | A scheme approving innovative vehicle combinations on measured safety and infrastructure performance rather than prescriptive dimensions. Access requires mass accreditation and the relevant route approvals. More |
| Personal property securities register (PPSR) | The national register of security interests in personal property, including plant and equipment. Determines who is entitled to what when a business fails, and whether hired or financed plant on your site is yours to use. More |
| Phoenix activity | Stripping assets from an indebted company to continue the same business through a new one, leaving debts behind. Illegal, an enforcement priority, and exposes directors and advisers alike. More |
| Pipe bursting | A renewal method in which the existing pipe is fractured outward and a new pipe drawn through the space. The only renewal technique that can increase diameter, and one that displaces ground — so adjacent services must be proved first. More |
| Pipe jacking | A trenchless method in which pipes are jacked forward from a shaft behind an excavating shield, at diameters large enough for people or machinery to work at the face. Brings confined space entry, ventilation and rescue obligations with it. More |
| Point cloud | The raw measured output of photogrammetry or laser scanning, from which surfaces, contours and orthomosaics are derived. Worth archiving, because derived products can be rebuilt from it but not the reverse. More |
| Portable long service leave | A scheme attaching long service leave entitlement to service in the construction industry rather than to one employer, funded by a project levy and employer returns. Operated separately in every state and territory — see portable long service leave. |
| Potholing | Physically exposing a buried service, usually by vacuum excavation, so its position and depth can be measured directly. A pothole is only valid at the point it was dug — record it as survey data and it serves the whole job. More |
| PQC | Queensland’s whole-of-government prequalification register for building consultants and contractors, applying above $1 million. Not a civil or road register. More |
| Practical completion | The point at which the works are capable of being used for their stated purpose, complete except for minor defects, with tests passed and essential documentation provided. More |
| Pre-condition survey | A dated photographic and written record of the existing condition of adjoining property, land and nearby structures — including every existing crack — made before work begins. Also called a dilapidation survey. The control that stops every pre-existing crack, rut and gate becoming yours, and the only one in civil construction with an absolute deadline: once you start, the opportunity is gone permanently. More |
| Precoated aggregate | Sealing aggregate given a light bitumen coating before spreading to improve adhesion and reduce stone loss. It has a limited working life and does not stockpile indefinitely. More |
| Preload / surcharge | Placing fill above final level to induce settlement before construction, then removing it. A programme item measured in weeks or months, with monitoring, and a double handling cost — see data centre and industrial civil works. |
| Prequalification | Assessment establishing a contractor’s capacity to undertake work of a given type, complexity and value. More |
| Presplit blasting | A controlled blasting technique at the final rock face that produces a clean, stable batter. Using a production blast at the face instead damages the rock mass behind it and creates stabilisation work that would not otherwise be needed. More |
| Primerseal | A combined prime and light seal that gives a running surface able to carry traffic through a curing period before the final seal is applied. Common on new pavement and frequently confused with a first-coat seal. More |
| Product pipe | The pipe actually being installed in a trenchless bore, as distinct from any temporary casing. Trenchless-rated pipe and joints must survive the tensile and bending loads of pull-back, and commonly cost more than open-cut equivalents. More |
| Progress claim | The periodic claim for work completed in the claim period, plus variations and any other entitlements. More |
| Prohibition notice | An inspector’s direction to stop an activity presenting an immediate or imminent risk. Unlike an improvement notice, it takes effect at once, and it appears in the compliance history prequalification schemes ask about. More |
| Project levy (long service leave) | A charge on the value of construction work above a project threshold, funding a portable long service leave scheme and usually payable before construction commences. Frequently tied to release of an approval — see portable long service leave. |
| Prolongation costs | Time-related costs incurred because the contract period was extended by a principal-caused delay. Reimbursement of actual cost, not damages at large. More |
| Proof of debt | The formal claim a creditor lodges with an administrator or liquidator, supported by documents. A poorly evidenced claim is reduced or rejected — see insolvency up the contractual chain. |
| Proof roll | A loaded vehicle driven over a prepared surface while the superintendent’s representative watches for deflection or movement. A judgement-based acceptance test, usually on a hold point, and a failure stops the following operation — see pavement stabilisation, testing and conformance. |
| Provisional quantity | A measured item at your rate where the stated quantity is uncertain and may go to zero. Your rate, your margin, your work — the civil contractor’s best risk tool. More |
| Provisional sum | A cash allowance set by the principal for work whose scope or cost cannot be defined, generally covering labour and materials. Adjusted to actual cost. More |
| Psychosocial hazard | An aspect of work design or management that can cause psychological harm — job demands, low control, poor support, role conflict, bullying, remote work, traumatic events. Now an explicit duty under work health and safety regulations — see psychosocial hazards. |
| Punch list | The list of minor items outstanding at practical completion. Minor defects should not, of themselves, prevent certification. More |
| Purging | Displacing the atmosphere in a confined space before entry. The purge medium becomes a hazard in its own right: purging with an inert gas creates an oxygen-deficient atmosphere and must be followed by ventilation and re-testing. More |
Q–R
| QMP / PQP | Quality Management Plan or Project Quality Plan — how your quality system applies to this project. More |
| Qualifying cause of delay | An event entitling you to an extension of time. Broader than a compensable cause — weather is commonly qualifying but not compensable. More |
| Quality level (AS 5488) | The classification of how reliable information about a buried service is: QL-D from existing records, QL-C from surveyed surface features, QL-B from a geophysical locate, and QL-A where the asset has been exposed and directly measured. Only QL-A is certainty. More |
| R category | Roadworks prequalification category under the national system, R1 to R5 in ascending complexity. More |
| Reactive maintenance | Under a term maintenance contract, unscheduled work triggered by an event or a defect report and subject to a contractual response time. Priced off a schedule of rates, it is the stream where low-utilisation economics bite: a rate built on full-day production will not survive a two-hour callout. More |
| Recipient created tax invoice (RCTI) | An invoice the paying party issues on the supplier’s behalf, common where subcontract work is remeasured. Requires a written agreement and a GST-registered supplier, and does not change anything about the statutory payment regime. More |
| Recourse to security | The contractual right of a principal to make a demand on your security. The trigger varies enormously — from an established entitlement, to a claim made in good faith, to no qualification at all — and it is the clause to read before signing. More |
| Reduction of security | The contractual halving of security that normally follows practical completion. It is not automatic: someone has to request it in writing against the certificate, and on most jobs nobody does. More |
| Referable dam | A dam that, because of its size and the consequences of failure, falls within a state’s dam safety regulation — terminology and thresholds differ by jurisdiction. Requirements attach to design, construction supervision, certification and surveillance — see irrigation and rural water civil works. |
| Refusal (piling) | A pile stopping before design founding level, usually on an obstruction. Whether the attempt, the obstruction removal and the replacement pile are paid for is a contract question, and the rig is on standby while it is argued. More |
| Registration Scheme | In NSW, the Registration Scheme for Construction Industry Contractors, listing subcontractor capability in drainage, earthworks, traffic control and other named work types. More |
| Regulated road transport contractor | The party performing work in the road transport industry under a services contract within a contractual chain, including owner-drivers and small fleet operators who are nobody’s employee. The party a fuel cost recovery obligation runs to. More |
| Rehabilitation bond | Financial assurance held by a regulator against the cost of rehabilitating a disturbed extractive site, released only when rehabilitation is accepted. Usually provided as a bank guarantee, consuming facility capacity that would otherwise support contract security — see owning a pit. |
| Reinforced soil wall | A wall whose structure is a mass of controlled fill reinforced with geogrid, with the facing acting as a skin. Requires physical space behind the face for the full reinforcement length, and specified fill — see retaining walls and earth retention. |
| Remeasurement | Payment for the quantity actually built at the scheduled rate. Quantity movement under a schedule of rates is remeasurement, not a variation. More |
| Reservation of rights | An insurer’s notice that it is investigating a claim while preserving its position on whether the policy responds. It is neither an acceptance nor a denial, and the claim can still go either way. More |
| Residual (balloon) | An amount deferred to the end of a finance term to lower the repayments. The risk is owing it when the machine is worth less, which higher-than-expected hours and a soft resale market both make likely. Rolling the shortfall into the next machine compounds it. More |
| Resource recovery exemption | The instrument allowing recovered material — recycled aggregate, treated soil, recovered fill — to be lawfully reused rather than disposed of, subject to characterisation, record-keeping and permitted-use conditions. Sustainability commitments made at tender often depend on one. More |
| Respirable crystalline silica | Fine dust generated when concrete, rock, brick or road base is cut, ground, drilled or crushed. A civil construction hazard, not only a stone benchtop one, with a tightened exposure standard and health monitoring duties. Dry cutting and dry sweeping are no longer defensible. More |
| Restricted access vehicle (RAV) | A heavy vehicle exceeding general mass or dimension limits, permitted to use the network only under a notice or permit carrying route, timing, signage and escort conditions. Most floats carrying medium and large plant fall into this category. More General access length rose to 20 metres for defined combinations on 1 August 2026 — see the 2026 HVNL changes. |
| Retention | Money withheld from progress payments as security, typically released in two tranches — at practical completion and at the end of the defects liability period. More |
| Retention of title | A contractual term under which supplied goods remain the supplier’s property until paid for. Generally ineffective against an insolvent buyer unless registered as a security interest — see insolvency up the contractual chain. |
| Retrieval line | The line attaching an entrant’s harness to a retrieval device at the surface, allowing recovery without a second person entering. Rigged before entry, not after an incident. More |
| Retroreflectivity | The measurable property of pavement marking and sign sheeting that returns headlight illumination to the driver. Specified, testable, and what makes marking and signs work after dark. More |
| Return to work | The process of getting an injured worker back to suitable duties. Claim duration drives claim cost and the first two weeks drive duration, which makes return to work the main lever a contractor has over both its premium and its lost time injury statistics. More |
| Returnable schedule | A form or template a tender requires to be completed and returned. Substituting your own format is a conformance risk before it is a presentation one. More |
| Revetment | A sloping armoured face, usually rock over filter layers and geotextile, protecting a shoreline or bank from wave and current attack. Ordinary excavation and rock work, but placed individually to a specified grading and packing rather than tipped and spread. More |
| RFI | Request for Information. Days outstanding on RFIs is one of the clearest evidence trails for a principal-caused delay. More |
| RFQ / RFT / RFP | Request for Quotation / Tender / Proposal — different approach-to-market forms with different levels of formality and different bases of comparison. More |
| Right of entry | The statutory right of a permit holder to enter a workplace to investigate a suspected contravention or hold discussions with eligible workers. Two separate rights exist under workplace relations and work health and safety law, with different notice rules — see right of entry and unions. |
| Rise and fall | A clause adjusting the contract price for movements in input prices and wages, by formula against a nominated index. More |
| Rising main | The pressure pipeline carrying flow from a pump station to its discharge point, with thrust restraint, pressure testing and air valve and scour arrangements that differ from gravity sewer. More |
| Risk register | A list of what could cost the job money or time, with the response chosen for each — avoid, reduce, transfer or accept. The structure between reading the contract and writing the price; without one, risks are accepted silently by default. More |
| Road manager | The authority responsible for a road — usually a council or state road agency — that consents to heavy vehicle access and sets conditions on it. Higher national mass and length limits do not override a road manager’s decision, and existing restrictions were preserved through the 2026 changes. More |
| Road transport contractual chain | The chain of contracts through which road transport services are procured, from the business whose need created it down to the operator who performs the work. A construction business that engages cartage is in one, whatever its own industry. More |
| Road user charge | The amount by which a fuel tax credit is reduced for fuel used in heavy vehicles travelling on public roads. Fuel used off public roads, and fuel powering auxiliary equipment, is not reduced by it. Set by government and able to be varied — it was cut to nil for a quarter in 2026, which briefly made on-road and off-road diesel worth the same credit. See fuel tax credits for civil contractors. |
S
| Safe harbour | A carve-out from the insolvent trading provisions protecting debts incurred in connection with a course of action reasonably likely to lead to a better outcome than immediate administration. Not a form you lodge, and conditional on employee entitlements and tax reporting staying current. More |
| Safety in design | The work health and safety duty on a person who designs a structure to ensure it is without risks to those who build, use, maintain and demolish it. It attaches to the act of designing, including temporary works and alternatives — see safety in design. |
| Safety management system (SMS) | The policies, systems and procedures governing the safety of an operator’s transport activities. Under the Heavy Vehicle Accreditation scheme it is audited against the SMS Standard using the present, suitable, operating and effective test — a folder of procedures satisfies the first two and fails the last two. More |
| Scaling (rock face) | Removing loose material from an excavated rock face. A recurring activity on a cutting rather than a one-off, and a precondition to anyone working beneath the face. More |
| Schedule of rates | A pricing model in which you tender unit rates and are paid for actual measured quantities. Quantity risk sits with the principal. More |
| Scope 3 emissions | Emissions in your value chain rather than from your own plant or purchased electricity — principally the materials you buy. Your scope 1 is your client’s scope 3, which is why large clients keep asking suppliers for fuel and materials data. More |
| Scope gap | Work that falls between subcontract packages and is in nobody’s price — the excavation stops at the structure, the structure starts at the slab, and the item between them is unpriced. Found by reading every quote’s exclusions together. More |
| Scope matrix | A table with one row per item of work at every package interface and a single named owner in each row. Any row with no owner is a scope gap you are about to fund; any row with two is a double-count in your price. More |
| Screw pile | A steel shaft with helices torqued into the ground, with capacity correlated to installation torque. Suits lighter loads and restricted access; unsuited to obstructed ground. More |
| Sectional completion | Completion of a defined part of the works by its own date, with its own defects period and sometimes its own liquidated damages. Standard on staged social infrastructure projects where a facility must keep operating — see schools, hospitals and social infrastructure. |
| Security | Cash retention or a bank guarantee held by the principal to secure performance and defect rectification. More |
| Security of payment | The statutory regime in each state and territory giving a rapid, enforceable route to payment. More |
| Selection criteria | The stated matters a tender response must address, usually weighted. More |
| Separable portion | A defined part of the works with its own date for practical completion, liquidated damages, certificate and defects period. More |
| Service locating | Detecting and marking buried assets by geophysical means — electromagnetic methods, ground penetrating radar or acoustic techniques. Produces a plan position with a tolerance, not a certainty, and depth is always its least reliable output. More |
| Set-off | The principal’s or head contractor’s right to deduct amounts from payments otherwise due. Broad set-off rights in a subcontract are worth negotiating. More |
| Sham contracting | Engaging a worker as a contractor when the relationship is in substance employment. Penalties are severe, the exposure scales with the size of the crew, and it is one of the most common serious risks for a growing civil SME. More |
| Share sale / asset sale | The two ways a business changes hands. A share sale transfers the entity with its contracts, licences and liabilities intact; an asset sale transfers selected assets and generally leaves prequalification, contracts and licences behind. The choice usually decides whether prequalification survives. More |
| Shotcrete | Sprayed concrete, with or without mesh or fibre, used to prevent ravelling and protect weathering-sensitive rock. Must be drained with weep holes, or it raises water pressure behind the face. More |
| Site allowance | A payment on top of base rates for work on a particular site or project, commonly set by an enterprise agreement or required to match head contractor conditions. It is a pricing input to establish before tendering, not after. More |
| Site auditor | An independent expert accredited by the environmental regulator to review and sign off contaminated site assessment and remediation, under the auditor schemes operating in NSW, Victoria and other jurisdictions. Their certification, not your completion, is what closes out remediation work — so their review sits on the critical path. More |
| Site diary | The daily contemporaneous record of labour, plant, work performed, weather, visitors, instructions and delays. The evidentiary spine of every claim. More |
| Slip lining | Renewing a pipeline by inserting a smaller pipe inside the existing one and grouting the annulus. Simple and robust, at the cost of hydraulic capacity. More |
| Slump | A measure of the consistency of fresh concrete at delivery, used to accept or reject a load. The parameter site crews are most tempted to alter by adding water, which is the most damaging routine act on a concrete pour. More |
| Small business restructuring | A debt restructuring process for eligible smaller companies in which directors stay in control while a plan is put to creditors. Eligibility is capped by liabilities and other conditions. More |
| Solvency | The ability to pay all debts as and when they fall due. A cash-flow test, not a balance-sheet test — a contractor with plant, work in hand and money owed can still be insolvent. More |
| Source approval | A principal’s or road authority’s acceptance of a particular quarry, pit or plant as a permitted source of material for the work. Where it applies, substituting a source mid-job is a specification decision rather than a purchasing one. More |
| Special conditions | Amendments to a standard form’s general conditions. Where the real risk allocation is usually decided. |
| Special purpose vehicle (SPV) | A company incorporated to hold a single project or development, standard on the private developer side. Your contract is with the SPV rather than the brand behind it, and its assets may be the land and nothing else — which is why the entity you are contracting with is worth establishing before you price. More |
| Spotter | A person whose only task is to observe and direct plant movement, positioned to be seen by the operator and with authority to stop work. Not a control if they are also doing another job — see plant and pedestrian separation. |
| Sprayed seal | A film of bituminous binder covered with a single layer of aggregate and rolled in. It waterproofs and provides a wearing surface but contributes essentially nothing structurally, so every defect underneath remains a defect. More |
| Standby person | The person stationed outside a confined space whose only job is to maintain contact, monitor conditions and start the emergency response. They do not enter, and that is the control that prevents the second fatality. More |
| Statement of attainment | Evidence issued by a registered training organisation that a person was assessed as competent against nationally recognised units. Not a licence, and not proof of current capability years later — see tickets, VOCs and competency records. |
| Static load test | Direct measurement of pile capacity under applied load. The most definitive evidence available, slow and expensive to set up, and normally applied to a small number of piles or to a preliminary test pile. More |
| Statutory demand | A formal demand for payment of a debt owed by a company. Failing to comply within the statutory period creates a presumption of insolvency, which makes it a deadline rather than correspondence. More |
| Stone column | Ground improvement using columns of compacted aggregate that stiffen and drain the soil mass. Aggregate supply is a material cost, and very soft soils may need a supporting method. More |
| Subcontractor’s statement | A written declaration by a subcontractor about its workers compensation, payroll tax and remuneration obligations, required in some jurisdictions before payment. A compliance document, not a substitute for checking that the cover is actually current. More |
| Subsurface utility information (SUI) | A classification of how well an underground asset has been located, from records-based information at the lowest confidence to physically exposed and surveyed at the highest. Quoting a quality level, and pricing to achieve it, turns service proving into a scoped item rather than an assumption. More |
| Superintendent | The person administering the contract — certifying payment, valuing variations, assessing extensions of time and certifying practical completion. More |
| Supplier code of conduct | The standards a government buyer requires of its suppliers — lawful conduct, fair treatment and payment of workers, safety, no modern slavery, ethical dealing. Usually applied by reference in the contract, extending to your own subcontractors, and enforced through procurement rather than the courts. More |
| Surcharge | Any load near the top of an excavation that increases the force pushing the face in — spoil, the excavator itself, stacked materials, traffic or an adjacent structure. The most common contributor to trench collapse and the least often assessed. More |
| Surcharge (retaining wall) | Load applied to the ground behind a wall in addition to the soil, from plant, compaction, stockpiles or future use. Walls have been pushed over during their own backfilling — see retaining walls and earth retention. |
| SWMS | Safe Work Method Statement, required for high-risk construction work. More |
T–Z
| Tare | The unladen mass of a vehicle or combination. Payload is the permitted mass less tare, so an unrecorded or out-of-date tare is the commonest reason a load that felt right is over. More |
| Target outturn cost | The agreed shared expectation of what a job will cost under a target cost arrangement. Actual costs are reimbursed, a fee is paid, and the difference from target is shared as pain-share or gain-share, usually capped — see ECI, alliances and collaborative contracting. |
| Temporary works | Anything that holds something up, holds something back or carries a load and is removed at the end — shoring, batters, working platforms, formwork, propping and coffer dams. Designed by the contractor almost everywhere, and rarely drawn by anyone. More |
| Tender consideration plan | In Queensland local government, a prepared plan permitting an alternative to the default tender process. More |
| Tender settlement | The structured review at which a completed estimate becomes a submitted price — testing assumptions, closing scope gaps, pricing the risk register, setting qualifications and deciding the margin, with every adjustment recorded. More |
| Tender threshold | The contract value above which a buyer must publicly tender. Set by state legislation or, in Victoria, by each council’s own adopted policy. More |
| Term maintenance contract | A multi-year contract to maintain an asset network — roads, drainage, reserves or reticulation — rather than to build a project. It usually carries three streams paid three ways: routine work by the period, reactive work off a schedule of rates, and minor works quoted package by package. More |
| Terminal (safety barrier) | The engineered end treatment of a safety barrier run. The most safety-critical part of the system, the most frequently installed incorrectly, and a substantial cost that a plain metre rate does not cover. More |
| Terminal gate price (TGP) | The wholesale price of fuel at the terminal, published as a weekly national average. It is the trigger measure for the road transport fuel cost recovery obligations, and it moves independently of the price on the bowser. More |
| TGS | Traffic Guidance Scheme — the drawing showing traffic control devices and arrangements at a worksite. More |
| TIC-CO | Transport Infrastructure Contract — Construct Only, the Queensland TMR construct-only contract form. More |
| Tiger tail | A coloured plastic sleeve fitted over an overhead conductor near a work site. It is a visual warning marker only: it does not insulate the line, does not make it safe to touch, and does not reduce the approach distance. More |
| Time bar | A contractual deadline for a notice or claim. Where notice is a condition precedent, missing it can extinguish the entitlement. More |
| TMP | Traffic Management Plan — the scored traffic returnable. More |
| Tolerance stack-up | The accumulation of manufacturing tolerance, construction tolerance and designed joint gaps across a run of precast units. Where nobody has added them up, the last unit will not fit. More |
| Trade waste agreement | The agreement with a water authority permitting discharge to sewer, with acceptance criteria, volumetric charges and often a limit on discharge rate. Frequently the easiest dewatering discharge route to approve and the most expensive to use — see dewatering, water take and discharge. |
| Training matrix | The record of what tickets, licences and competencies each worker holds and when each expires. The artefact tender evaluators ask for, and the tool that turns the next ticket into a plan rather than a favour. More |
| Tree protection zone (TPZ) | An area around a retained tree within which excavation, level change, compaction and stockpiling are restricted, sized from the tree and fenced before work starts. Root damage is invisible and can kill a tree long after handover — see clearing, fauna and threatened species. |
| Trench shield | A box or shield lowered into a trench to protect people working inside it. It protects rather than supports — the ground outside can still move, undermining services, pavements and adjacent structures. More |
| Trenchless installation | Installing conduit or pipe without open excavation — directional drilling, thrust boring, ramming or microtunnelling. Necessary under roads, rail and waterways; sometimes an unexamined default on an open verge where an open trench would be faster and safer. More |
| Trust account | A statutory account in which project or retention money must be held, operating in Queensland, NSW and WA on defined contracts. More |
| Unbalanced bidding | Loading and cutting rates to improve the outcome on remeasurement. Binds you to your own low rates at variation time, and evaluators check for it. More |
| Unconditional undertaking | Security under which the issuer pays the beneficiary on demand without the beneficiary proving default, and without regard to any dispute under the underlying contract. Treated as close to cash, which is exactly why principals accept it. More |
| Unexpected finds | The procedure for what happens when something of potential cultural heritage significance is uncovered: stop work in the vicinity, secure it, do not disturb or remove anything, notify the parties named in the plan, and do not restart until authorised. Human remains are a separate and immediate matter for police. More |
| Unfair preference | A payment received shortly before a company’s insolvency that a liquidator may seek to recover because it preferred one unsecured creditor over others. Defences exist; a demand should not be paid without advice — see insolvency up the contractual chain. |
| Unfit to drive | Since 1 August 2026, a driver must not drive a heavy vehicle over 4.5 tonnes while impaired by fatigue or otherwise unfit for any reason — illness, injury, medication, or alcohol and other drugs. Chain of responsibility parties must not cause or encourage it, and must enable a driver to stop. More |
| Unmetered supply | The electricity connection arrangement used for public lighting, where consumption is calculated from registered load data rather than a meter. Registered with the distributor and retailer, and a step contractors forget. More |
| Unsuitable material | Excavated material that cannot lawfully or technically go into fill — organics, highly plastic clay, oversize rock, material outside specified limits, or material too wet to compact. More earthworks money is won and lost on this item than on production rates. More |
| Utilisation (plant) | The proportion of time a machine is actually working. Low utilisation is a fleet-size or work-pipeline problem, distinct from low availability, which is a maintenance problem — see plant maintenance and availability. |
| Utility strike | Damaging a buried service during excavation or boring. The loss is measured by the asset and the people it serves rather than by your contract, which is what makes it disproportionate to any other risk on a civil job. More |
| Value for money | The statutory basis on which Australian government procurement decisions are made — not lowest price. More |
| Variation | A directed change to the scope of the work under the contract, valued and paid under the variation clause. More |
| VendorPanel | A procurement platform widely used by Australian councils for quotations and panel engagements. More |
| Verification of competency (VOC) | An employer’s practical assessment that a person can safely operate specific plant in the conditions where they will use it. The way the duty to ensure competence is discharged for plant with no licence, and never a substitute for a licence where one is required — see tickets, VOCs and competency records. |
| WAE drawings | Work-as-executed drawings, recording what was actually built. A standard handover requirement. More |
| Waste classification | The regulated category assigned to excavated material, determined by laboratory analysis against the thresholds set in your jurisdiction. It decides where the material may lawfully go and what disposal costs — the same truckload can differ in cost by an order of magnitude between classes, which makes it the dominant pricing variable in contaminated ground. More |
| Waste levy | A per-tonne charge applied to waste disposed to landfill, included in the gate fee and differing by jurisdiction and between metropolitan and regional areas. It dominates disposal cost, which is why diversion to recycling is a real saving — see demolition and site clearing. |
| Waterstop | A strip cast into a construction or movement joint in a liquid-retaining structure to prevent leakage. Workmanship-critical and a very common source of leaks when misplaced, damaged or displaced during placement — see treatment plant civil works. |
| Wet hire / dry hire | Plant supplied with an operator, or without one. The distinction changes who insures the machine, who carries safety duties for the work, who holds heavy vehicle duties on the float, and whether the arrangement may fall within a labour hire licensing scheme. More |
| Wet well | The chamber in which wastewater or stormwater collects before being pumped out. It is a confined space, sits below the water table, and is the most aggressive concrete exposure environment in ordinary civil work. More |
| Whole-of-life cost | The total cost of an asset across its life — capital, operating, maintenance, renewal and disposal — rather than construction price alone. How asset owners evaluate what you offer — see asset management plans and whole-of-life cost. |
| WHS management plan | The project safety plan, a mandatory returnable on most civil tenders. More |
| Wick drain | A vertical drain installed with surcharge to shorten the drainage path and accelerate consolidation. Buys programme time with cost, and completion is proven by settlement monitoring. More |
| Wingwall | The angled retaining walls either side of a culvert headwall that hold back the embankment and guide flow into or out of the structure. More |
| Work diary | The record of a driver’s work and rest hours, written or electronic, required for fatigue-regulated vehicles outside a 100km radius of base and for anyone on BFM, AFM, ACH or exemption hours. Several daily-sheet entries became optional on 1 August 2026; the duty to carry, complete and present it did not. More |
| Work lot | A defined portion of work treated as a unit for inspection, testing and conformance. More |
| Working platform | The designed, constructed surface a piling or drilling rig operates from. It is temporary works with a design, it has to be removed afterwards, and it is routinely omitted from both sides of a piling quote. More |
| Working width (safety barrier) | The space a barrier system needs behind it to deflect and perform as tested. Installing a barrier with insufficient clearance to the hazard behind it defeats the system. More |
| Working with children check | The state or territory screening clearance required for workers on sites where children are present. Schemes, exemptions and interstate recognition differ by jurisdiction, clearances take time, and they apply to subcontractors and delivery drivers too — see schools, hospitals and social infrastructure. |
Acronym quick reference
| Acronym | Stands for | Acronym | Stands for |
|---|---|---|---|
| ABN | Australian Business Number | ISO | International Organization for Standardization |
| ABS | Australian Bureau of Statistics | ITP | Inspection and Test Plan |
| ACA | Alternative Compliance Accreditation | JAS-ANZ | Joint Accreditation System of Australia and New Zealand |
| ACCC | Australian Competition and Consumer Commission | LD | Liquidated Damages |
| ACH | Alternative Compliance Hours | LGA | Local Government Area, or Local Government Association |
| ACN | Australian Company Number | LGAT | Local Government Association of Tasmania |
| ADI | Authorised Deposit-taking Institution | LGP | Local Government Procurement (NSW) |
| AGTTM | Austroads Guide to Temporary Traffic Management | LRTWE | Labour Relations, Training and Workplace Equity Plan (Qld) |
| AIP | Australian Industry Participation | MAV | Municipal Association of Victoria |
| ANAO | Australian National Audit Office | MIC | Minor Infrastructure Contract (Qld TMR suite) |
| APP | Aboriginal Procurement Policy (NSW) | MOWP | Method of Working Plan |
| APRA | Australian Prudential Regulation Authority | MPSG | Major Projects Skills Guarantee |
| ASIC | Aviation Security Identification Card (not the corporate regulator) | MRPV | Major Road Projects Victoria |
| AS/NZS | Joint Australian/New Zealand Standard | MRWA | Main Roads Western Australia |
| ASTT | Australasian Society for Trenchless Technology | MSIC | Maritime Security Identification Card |
| ATM | Aggregate Trailer Mass | MSO | Minimum Standards Order |
| ATO | Australian Taxation Office | NATA | National Association of Testing Authorities |
| AUS-SPEC | The national local government specification system | NDD | Non-Destructive Digging |
| BAS | Business Activity Statement | NEPM | National Environment Protection Measure |
| BOQ | Bill of Quantities | NES | National Employment Standards |
| BPIC | Best Practice Industry Conditions (Qld, removed by QPP 2026) | NHVAS | National Heavy Vehicle Accreditation Scheme (replaced by the HVA scheme) |
| BYDA | Before You Dig Australia | NHVR | National Heavy Vehicle Regulator |
| CAIP | Commonwealth Australian Industry Participation | NPS | National Prequalification System |
| CAL | Contractor Accreditation Limited (NT) | NTA | Net Tangible Assets |
| CCF | Civil Contractors Federation | PAYG | Pay As You Go (withholding) |
| CCTV | Closed Circuit Television (pipeline condition inspection) | PBD | Procurement Board Direction (NSW) |
| CDE | Common Data Environment | PBS | Performance Based Standards |
| CEMP | Construction Environmental Management Plan | PC | Practical Completion, or Prime Cost |
| CFA | Continuous Flight Auger | PPSR | Personal Property Securities Register |
| CHMP | Cultural Heritage Management Plan | PQC | Prequalification (Queensland building) |
| CIPP | Cured-In-Place Pipe | PSP | Preferred Supplier Program (WALGA) |
| CITB | Construction Industry Training Board (SA) | QMP | Quality Management Plan |
| CML | Concessional Mass Limits (retired as a category in 2026) | QPP | Queensland Procurement Policy |
| CoR | Chain of Responsibility | RCTI | Recipient Created Tax Invoice |
| CPR | Commonwealth Procurement Rules | RDO | Rostered Day Off |
| CTF | Construction Training Fund (WA) | RFI | Request for Information |
| CUA | Common Use Arrangement | RII | Resources and Infrastructure Industry (training package) |
| DBYD | Dial Before You Dig (now Before You Dig Australia) | RPL | Recognition of Prior Learning |
| DE | Digital Engineering | RTCCO | Road Transport Contractual Chain Order |
| DIT | Department for Infrastructure and Transport (SA) | RUC | Road User Charge |
| DLP | Defects Liability Period | SAIPP | South Australian Industry Participation Policy |
| DOCA | Deed of Company Arrangement | SBR | Small Business Restructuring |
| DPN | Director Penalty Notice | SME | Small and Medium Enterprise |
| DTP | Department of Transport and Planning (Vic) | SMS | Safety Management System |
| EBA | Enterprise Bargaining Agreement (colloquial for an enterprise agreement) | SOP | Security of Payment |
| EOI | Expression of Interest | SOR | Schedule of Rates |
| EOT | Extension of Time | SPF | Social Procurement Framework (Vic) |
| EPA | Environment Protection Authority | SPV | Special Purpose Vehicle |
| ESCP | Erosion and Sediment Control Plan | SUI | Subsurface Utility Information |
| FTC | Fuel Tax Credit | SWMS | Safe Work Method Statement |
| FWC | Fair Work Commission | TCAWS | Traffic Control at Work Sites (TfNSW standard) |
| FWO | Fair Work Ombudsman | TfNSW | Transport for NSW |
| GCM | Gross Combination Mass | TGP | Terminal Gate Price |
| GIICA | Games Independent Infrastructure and Coordination Authority (Qld) | TGS | Traffic Guidance Scheme |
| GML | General Mass Limits | TIC | Transport Infrastructure Contract (Qld TMR suite) |
| GMP | Guaranteed Maximum Price | TIPDS | Transport Infrastructure Project Delivery System (Qld) |
| GPR | Ground Penetrating Radar | TMP | Traffic Management Plan |
| GSA | General Safety Accreditation | TMR | Transport and Main Roads (Qld) |
| GST | Goods and Services Tax | UNSPSC | United Nations Standard Products and Services Code |
| GTO | Group Training Organisation | VGPB | Victorian Government Purchasing Board |
| GVM | Gross Vehicle Mass | VIDA | Victorian Infrastructure Delivery Authority |
| HDD | Horizontal Directional Drilling | VOC | Verification of Competency |
| HML | Higher Mass Limits | WAE | Work As Executed |
| HRWL | High Risk Work Licence | WAIPS | Western Australian Industry Participation Strategy |
| HVA | Heavy Vehicle Accreditation | WALGA | WA Local Government Association |
| HVNL | Heavy Vehicle National Law | WHS | Work Health and Safety |
| ICN | Industry Capability Network | WSA | Water Services Association code (e.g. WSA 03) |
| IPP | Indigenous Procurement Policy (Commonwealth) | WSAA | Water Services Association of Australia |
| ISLP | Infrastructure Skills Legacy Program |
The eight worth knowing precisely
If you read nothing else on this page, these eight distinctions are the ones that most often cost civil SMEs money.
- Modern award vs enterprise agreement. One is the industry minimum that applies by default. The other is negotiated, displaces it, and usually costs more. Pricing labour without knowing which binds you is guessing.
- Contractor licence vs prequalification. One is legal permission to carry out the work. The other is a buyer’s assessment that you may bid for it. Neither implies the other, and the regulator does not care that an agency prequalified you.
- Remeasurement vs variation. Quantity movement inside scheduled items is remeasurement and flows automatically. Scope change is a variation and needs notice.
- Provisional sum vs provisional quantity. The principal sets the sum; you set the rate. Your margin position is completely different.
- Qualifying cause vs compensable cause. One gets you time. Only the other gets you money.
- Extension of time vs delay costs. Two claims, two tests. Approving one does not approve the other.
- Practical completion vs completion. Minor defects do not prevent practical completion — they belong in the defects period.
- Retention vs bank guarantee. Cash retention can be pursued as a payment claim; a bank guarantee generally cannot.
This glossary is general information for Australian civil construction businesses and is not legal advice. Definitions describe common Australian industry usage; where a term is defined in your contract, that definition governs. Standard forms are routinely amended. Always work from your executed contract documents.