Chain of Responsibility (CoR)
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Chain of responsibility (CoR) is an Australian heavy vehicle law concept that extends safety accountability across the whole transport supply chain. Everyone who influences how a heavy vehicle is loaded, scheduled, and driven shares a duty to ensure safety, not just the driver.
Chain of responsibility (CoR) is a principle in Australia’s Heavy Vehicle National Law that makes every party who influences a transport task legally accountable for safety, not only the driver. Parties such as operators, schedulers, consignors, consignees, loaders, and packers each have a duty to ensure, so far as is reasonably practicable, the safety of their transport activities. It applies to risks like fatigue, speed, mass, dimension, and load restraint.
CoR and safety technology, including cameras
The HVNL does not mandate any particular safety technology, and no CoR party is required to fit cameras. What the regulator does say is that being aware of a suitable available technology and not implementing it can itself be a failure of the Primary Duty.
The NHVR is equally clear that fitting the technology is not the obligation being discharged. Its regulatory advice warns against treating safety technology as a box-ticking exercise and states that effectiveness depends on how the data is monitored, analysed and acted on, and on driver engagement, rather than on installation. A camera programme nobody reviews is closer to evidence of a gap than proof of diligence.
The practical reading for a mixed fleet: assess the risks in your own transport activities, record why each technology was adopted or ruled out, and keep the review process auditable. That record is the artefact a CoR investigation asks for, and it is the same record a fleet needs anyway to know whether a camera programme is working.
Sources: NHVR, Regulatory Advice - Heavy vehicle safety technology and telematics
Key facts you can cite
CoR parties and their executives may be failing to meet their Primary Duty obligations if they are aware of, or ought to reasonably be aware of, a safety technology that is available and suitable to eliminate or mitigate a risk associated with their transport activities but fail to implement this measure.
Source: NHVR, Regulatory Advice - Heavy vehicle safety technology and telematics, checked 12 September 2026
Reuse these lines with attribution: cite the named primary source, and link this page if the summary helped.
Why it matters
CoR recognises that unsafe outcomes on the road often originate off the road, in tight delivery schedules, overloading, or pressure on drivers. By placing duties across the supply chain, it prevents responsibility from resting solely with drivers. Businesses that consign, receive, load, or schedule freight need systems and records to demonstrate they have taken reasonable steps to manage transport safety risks.
How MapTrack helps
MapTrack helps transport-related businesses meet CoR duties by keeping vehicle inspection, maintenance, and compliance records that show heavy vehicles and equipment are roadworthy and that reasonable safety steps have been documented.
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Frequently asked questions
Who is covered by chain of responsibility?
CoR covers parties in the heavy vehicle transport chain who can influence safety, including the operator, prime contractor, employer, scheduler, consignor and consignee, packer, loader and unloader, and loading manager. A single business can hold more than one of these roles. The driver remains responsible too, but CoR ensures off-road decision-makers share accountability for transport safety.
What risks does chain of responsibility apply to?
CoR applies to the safety risks associated with heavy vehicle transport, including driver fatigue, speed compliance, vehicle mass and dimension limits, and securing and restraining loads. Each party must take reasonable steps within its control to manage these risks, for example by setting realistic schedules, not overloading vehicles, and ensuring loads are properly restrained before transport.
Related terms
Fatigue Management
Fatigue management is the practice of controlling the risk that tired drivers pose to road safety. For fatigue-regulated heavy vehicles in Australia, it involves complying with work and rest hour limits, keeping accurate records such as a work diary, planning realistic schedules, and recognising the signs of fatigue. It is part of the chain of responsibility, so the duty extends beyond drivers to operators and schedulers.
National Heavy Vehicle Regulator (NHVR)
The National Heavy Vehicle Regulator (NHVR) is the Australian body responsible for administering the Heavy Vehicle National Law (HVNL), which applies to heavy vehicles over 4.5 tonnes gross vehicle mass in participating states and territories. The NHVR oversees areas such as vehicle safety and standards, fatigue management, mass and dimension limits, accreditation schemes, and access permits for restricted routes.
Fleet Management
Fleet management is the administration of an organisation’s vehicles and mobile plant, including acquisition, maintenance, fuel management, driver compliance, GPS tracking, and disposal. It covers light vehicles, heavy vehicles, trailers, mobile plant, and any other registered or unregistered mobile assets. Modern fleet management relies on telematics, GPS tracking, and software platforms to optimise operations and reduce costs.
Pre-Start Inspection
A pre-start inspection is a systematic check performed on plant, equipment, or vehicles before each use or shift to identify defects, damage, or unsafe conditions. It typically follows a standardised checklist covering safety-critical items such as brakes, steering, lights, tyres, guards, fluid levels, and warning devices. In Australia the legal duty behind it is the requirement to inspect plant in accordance with the manufacturer's recommendations, so where an operator's manual specifies a check before each shift, that check is how the duty is met.
Compliance Management
Compliance management in asset-intensive industries is the systematic process of ensuring that equipment, operations, and personnel meet all applicable regulatory, safety, environmental, and contractual requirements. It encompasses tracking inspection due dates, certifications, licences, safety checks, environmental obligations, and industry-specific standards. Compliance management requires both proactive scheduling and thorough record-keeping.
Driver monitoring system (DMS)
A driver monitoring system points inward. Using an infrared cabin-facing camera so it works at night and through sunglasses, it tracks head pose, eye state and posture to infer whether the driver is attentive. It is the counterpart to ADAS, which points outward at the road. In fleet equipment the two are usually sold together in a single dual-facing unit, and the terms are often used loosely as though they were one feature.
Video telematics
Video telematics combines road-facing and sometimes driver-facing camera footage with the telematics data recorded at the same moment: GPS position, speed, heading, acceleration and time. Traditional telematics tells you that a harsh braking event occurred at a location and a speed. Video telematics shows you what was in front of the vehicle when it happened. Most systems record continuously to local storage and upload only short clips around a triggered event, because uploading every minute of footage over a mobile network is neither affordable nor useful.
Cite this definition
Writing about this topic? You’re welcome to quote this definition. Here’s the wording to use so your readers can find the original.
Chain of responsibility (CoR) is a principle in Australia’s Heavy Vehicle National Law that makes every party who influences a transport task legally accountable for safety, not only the driver.
- Short attribution
- MapTrack Glossary: Chain of Responsibility (CoR), https://www.maptrack.com/glossary/chain-of-responsibility
- Reference list
- MapTrack. (2026). Chain of Responsibility (CoR) [Glossary definition]. Retrieved from https://www.maptrack.com/glossary/chain-of-responsibility
Free to reuse with credit under a Creative Commons Attribution 4.0 licence. If you’d rather link straight to it, the page is https://www.maptrack.com/glossary/chain-of-responsibility.
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