B-doubles
A B-double is a combination of a prime mover towing two semi-trailers all connected by B-couplings.
Road Access
| Notice | |
| Operator’s Guide | National Class 2 B-double Authorisation Notice Operator’s Guide New South Wales Higher Mass Limits Declaration 2025 - Information Sheet |
| Network | The B-double route maps on the NHVR National Network Map. |
| Permit | Vehicles seeking access to roads that are not on the approved network must obtain a permit for travel. Information on applying for a permit is available on the National Heavy Vehicle Regulator website. |
| Schemes | Schemes with B-double access include: |