Ensuring CoR Compliance: A Comprehensive Guide for Australian Transport Operators

Chain of Responsibility (CoR) compliance requires every party in the heavy vehicle supply chain to take reasonable steps to ensure safety under the Heavy Vehicle National Law (HVNL). It demands a systematic safety management approach covering fatigue, speed, mass, load restraint, and vehicle condition, with executives maintaining active oversight rather than just approving policies.

CoR applies to heavy vehicles with a gross vehicle mass of 4.5 tonnes or more. It places obligations on every party in the supply chain because influence over transport safety extends from the boardroom to the warehouse floor.

Under the HVNL, CoR obligations extend across five key areas:

• Fatigue management — ensuring drivers operate within work and rest requirements
• Speed compliance — preventing delivery pressures from encouraging unsafe driving practices
• Mass and dimension compliance — keeping loads within legal limits
• Load restraint verification — protecting against shifting cargo
• Vehicle condition maintenance — keeping heavy vehicles roadworthy

The HVNL establishes a principle of shared responsibility. Executives and senior managers carry a primary duty to ensure safety, with executive liability provisions creating personal accountability for compliance failures. Learn more in our about Chain of Responsibility guide, or explore what Australian HVNL duty holders need to understand.

Successful COR certification requires specific organisational capabilities. Missing elements cause certification delays or audit failures.

Management Commitment

Senior leadership must actively participate in safety management, going beyond approving budgets or signing policies. Executives need to understand their due diligence obligations, attend CoR training appropriate to their role, and respond to identified risks.

Baseline Safety Capability

Your business needs foundational safety practices before pursuing certification. Incident reporting processes must function, and you should maintain records of vehicle inspections, driver licences, and maintenance activities. A designated person should hold accountability for safety outcomes.

Operational Stability

Certification works best when operations follow consistent patterns. Businesses experiencing major restructuring should stabilise first. Plan capacity accordingly: allocate 20–30% of the internal auditor's time during initial certification and 10–15% for ongoing maintenance.

The NHVR promotes Safety Management Systems (SMS) as the practical framework for meeting CoR safety duties. Your policies and procedures form the documented foundation of this system.

Core Policy Development

Start with a master CoR policy statement that articulates your organisation's commitment to heavy vehicle safety. This policy should identify the five CoR obligation areas and state how your business manages each.

Procedures for Each Obligation Area

• Fatigue management — driver scheduling, journey planning, fatigue risk assessment
• Speed compliance — route planning, delivery scheduling, driver performance monitoring
• Mass and dimension — weighing requirements, load planning, oversize load management
• Load restraint — application of the NTC Load Restraint Guide 2018, restraint selection, inspection procedures
• Vehicle condition — maintenance schedules, pre-start inspection checklists, defect reporting

Risk Management and Communication

Establish a systematic risk assessment process that identifies hazards and implements control measures. Define how safety information flows through your organisation and document how you communicate CoR requirements to suppliers. Practical CoR training helps your team apply these procedures effectively.