NHVAS compliance software
NHVAS and HVA Accreditation Evidence Software
NHVAS compliance software helps Australian heavy vehicle operators log defects, track corrective actions and keep audit-ready evidence across the Mass, Maintenance and Fatigue modules. CoRGuard by MAEZ unifies these records.

The compliance problem
How Can a Small Transport Operator Keep Audit-Ready Compliance Records?
Small operators keep audit-ready records by centralising maintenance, mass and fatigue evidence for NHVR reviews. CoRGuard by MAEZ consolidates corrective actions and CoR records for chain of responsibility parties.
NHVAS had three modules: Mass Management, Maintenance Management, and Fatigue Management (Basic or Advanced). The Heavy Vehicle Accreditation (HVA) scheme took effect on 1 August 2026. No new NHVAS accreditation is being granted, and operators with existing NHVAS accreditation can keep operating under NHVAS until that accreditation expires.
Vehicle maintenance compliance tracking
Pre-start and inspection workflows
Fault and corrective action visibility
Document and policy control
Real-time alerts for overdue actions
Audit-ready reporting
What CoRGuard helps improve
NHVAS maintenance evidence, not duplicate admin
See which vehicles, drivers, and records need attention before an audit.
Track defect reports and corrective actions in one auditable system.
Keep evidence organised for NHVAS maintenance and broader compliance reviews.
Common questions
Clear answers for transport operators
- What does NHVAS stand for and what does it recognise?
- NHVAS stands for the National Heavy Vehicle Accreditation Scheme. It recognised heavy vehicle operators with robust safety management systems across three modules: Mass Management, Maintenance Management and Fatigue Management (Basic or Advanced). Since 1 August 2026 the NHVR grants new accreditation under the Heavy Vehicle Accreditation (HVA) scheme; existing NHVAS operators continue until their accreditation expires.
- What is the NHVAS Maintenance accreditation?
- The NHVAS Maintenance accreditation recognises operators who meet approved standards for vehicle maintenance management, including scheduled inspections, defect recording and corrective actions. CoRGuard tracks these records to support audit-ready evidence.
- What is NHVR Basic Fatigue Management (BFM)?
- Basic Fatigue Management (BFM) is an NHVR fatigue management option under the NHVAS Fatigue Management module that allows operators to work with more flexible work and rest hours while meeting specific fatigue risk management standards.
- How does CoRGuard support NHVAS accreditation?
- CoRGuard, built by MAEZ, unifies defect records, prestart checks, fatigue data and maintenance evidence across NHVAS modules. This helps operators maintain audit-ready documentation for Mass, Maintenance and Fatigue accreditation.
- What changed for NHVAS operators on 1 August 2026?
- The amended HVNL and the Heavy Vehicle Accreditation (HVA) scheme took effect on 1 August 2026. No new NHVAS accreditation is granted, existing NHVAS operators continue until their accreditation expires, and the HVA scheme puts a Safety Management System at the centre of accreditation. CoRGuard keeps maintenance, fatigue-check and corrective-action records in one place for audit.
See how CoRGuard handles your compliance workflow
Book a short demo and we will map CoRGuard to your fleet, depots, drivers, contractors, NHVAS obligations, and Chain of Responsibility risk points.