Heavy Vehicle Class (HVNL s.6)

Multi Combination (MC)

B-Doubles | HPFV A-Doubles | Road Trains | Min. Licence: MC

High-productivity multi-trailer combinations including B-Doubles, PBS A-Doubles (HPFV), B-Triples, and Road Trains.

1. Basic Information & Technical Specifications

  • Configuration: Prime mover towing 2 or more trailers (B-Double, A-Double, Road Train). 9-Axle B-Double GML is 62.5t (up to 68.0t HML).
  • Length & Signs: Max 25.0m (or 26.0m with FUPS). LONG VEHICLE or ROAD TRAIN warning signs required.

2. Licensing Requirements & Conditions

  • Required Class: Strictly MC (12 months HR or HC tenure). 0.00 BAC.

3. Enforcement Options & Roadside Focus

  • Class 2 RAV Route Breaches: Action B-Doubles operating off gazetted networks without NHVR Class 2 permits (HVNL s.137).
  • ABS/EBS Integrity: Inspect ISO 7638 power cables between units; disconnected cables warrant Major Defect action.

4. Reference Images & Inspection Points

9-Axle B-Double

9-Axle B-Double

Standard linehaul B-Double operating at 62.5t GML on gazetted networks.