
What is Chain of Responsibility?
Who is in the chain under the Heavy Vehicle National Law, what each party is responsible for, and how to show you've done your part.
The idea behind it
Chain of Responsibility (CoR) recognises that a heavy vehicle's safety isn't only down to the driver. Unrealistic schedules, overloaded trailers, poorly restrained loads and pressure to skip rest breaks usually start somewhere else in the chain.
Under the Heavy Vehicle National Law (HVNL), every party whose actions, decisions or omissions can affect the safety of a heavy vehicle on the road has a duty to make sure their part of the transport activity is safe.
Who is in the chain
The law names the parties in the chain. Depending on what your business does, you may be more than one of them.
- Employers of drivers, and prime contractors who engage them
- Operators of heavy vehicles
- Schedulers of goods, passengers or drivers
- Consignors, who send goods, and consignees, who receive them
- Packers of goods
- Loading managers, loaders and unloaders
What the duty means
The primary duty is to ensure, so far as is reasonably practicable, the safety of your transport activities. That means identifying the risks your part of the chain creates, such as fatigue, speed, mass, dimension, load restraint and vehicle condition, and doing what is reasonably practicable to eliminate or minimise them.
Executive officers, such as directors and senior managers, have their own due diligence duty: to take reasonable steps to make sure the business complies. Knowing the risks, having controls in place and checking they work are all part of that.
Showing you've done your part
If something goes wrong, the question is what each party did to prevent it. Good intentions aren't enough; you need records. That means checks that were actually done, signed by the person who did them, with the time and any problems found and how they were fixed.
Paper makes this hard. Forms are filled in after the fact, filed in different places and rarely looked at until there's an incident.
- Prestart checks that show vehicles were checked before each trip
- Safety declarations at the gate covering hours, mass, load restraint and dangerous goods
- Weight declarations with the weighbridge docket
- Fatigue stand-downs and safe driving plans that show work and rest were managed
- A record of who resolved each problem, and when
Where LOGFYX fits
LOGFYX gives each party in the chain the checks for their part, on the phone they already carry. Every record is signed and time-stamped, problems go straight to the person who can fix them, and the CoR Audit download brings prestarts, declarations, fitness for duty and mass verifications together in one file for an audit.
General information only, not legal advice. Rules change and differ between states and territories, so check the current requirements with the NHVR, Safe Work Australia or your state regulator.
Related modules
Safety Declaration
Clear every arriving and departing truck through the same questions: hours, mass, induction, load restraint and dangerous goods, signed by the driver.
Fatigue Stand-Down
Record a driver's rest break on site with a running clock. They leave with a certificate that NHVR or Police can verify.
Vehicle Weight Declaration
Record the driver's declared weights, a photo of the weighbridge docket and the mass limit scheme (GML, HML or NHVAS). Tare plus load can't go over GVM.
Safe Driving Plan
Plan each leg of a trip with working and rest time, and send it to the transport company. They accept it or send it back with a signature, with no login, and you're reminded before it's due for review.
More guides
Digital prestart checklists
Why paper prestarts fail, what a good vehicle and machinery prestart covers, and how faults get to the person who can fix them.
Fatigue management for heavy vehicle drivers
Work and rest hours, spotting fatigue before it's a problem, and what to do when a driver needs to stand down on site.
Fitness for duty assessments explained
What a fitness for duty assessment checks, when to use a self-assessment or a supervisor assessment, and how to follow up a concern.
Load restraint: how many straps do you need?
How the NTC Load Restraint Guide works out the number of straps, and what blocking, friction and strap angle change.
Heavy vehicle mass limits: GML, HML and NHVAS
The mass limit schemes explained, what a weight declaration should record, and how to check loads against the weighbridge.
Going paperless: replacing paper safety forms
What changes when checks move from clipboards to phones, how to roll it out across sites, and how to keep records audit-ready.
Visitor and contractor sign-in
Replacing the paper visitor book: inductions before arrival, QR sign-in at the gate, and knowing who is on site in an emergency.
See it running on your own sites
We'll set up a demo with your sites, your assets and the modules you need, then walk your supervisors through it.

