Tight capacity, seasonal peaks and customer demand are pushing many operators to rely more heavily on subcontracted carriers and owner-drivers. That is not new. What is changing is the level of scrutiny being applied to how those parties are selected, inducted and supervised. Under the Heavy Vehicle National Law, CoR duties do not disappear because work is outsourced. If your business influences transport activities, your responsibility remains tied to what you control, direct, request or tolerate.
The compliance risk often begins before the first load is dispatched. In practice, some onboarding processes still focus on insurance certificates, rates, availability and proof of vehicle registration, while giving far less attention to fatigue systems, maintenance evidence, mass management, load restraint capability, driver competency and incident reporting. That creates a weak starting point. A subcontractor may look commercially suitable but still present serious safety exposure if their controls are undocumented, inconsistent or poorly understood.
This matters because the HVNL is aimed at preventing parties in the supply chain from causing or encouraging breaches. A scheduler who allocates unrealistic work to a subcontractor, a manager who ignores signs of repeated defects, or a procurement team that engages low-cost capacity without verifying basic safety controls can all contribute to risk. The legal test is not whether a business intended harm. It is whether it did what was reasonably practicable to eliminate or minimise the risk.
The practical lesson for operators is to treat subcontractor onboarding as a live CoR control point, not an admin step. Before work starts, verify the subcontractor’s fatigue procedures, maintenance program, licence and accreditation status where relevant, load restraint practices, incident escalation process and evidence of inductions. Check how they manage substitutions of vehicles and drivers. Confirm who receives route instructions, who approves changes and how non-conformances are reported. If the subcontractor uses further subcontractors, your controls should address that too.
After onboarding, the job is not finished. Operators should monitor telematics exceptions where available, review delivery performance for signs of speeding or unrealistic trip times, sample maintenance records, inspect load presentation and track whether repeated issues are actually closed out. Contracts should clearly require cooperation, record access where appropriate, and compliance with safety directions. Just as importantly, internal teams need training so they understand that commercial urgency does not override CoR duties.
A well-managed subcontractor network gives operators flexibility without surrendering visibility. A poorly managed one creates blind spots that can quickly become legal exposure.
If you want an independent view of whether your subcontractor controls would stand up under scrutiny, COR Safety Management Systems can help with independent CoR audits that test the real strength of your onboarding, contractor management and verification processes.