Road trains
A Road Train is a heavy vehicle towing two or more trailers (excluding converter dollies supporting a trailer).
Road Access
| Notice | National Class 2 Road Train Authorisation Notice 2022 (No.3) |
| Operator’s Guide | National Class 2 Road Train Authorisation Notice Operator's Guide New South Wales Higher Mass Limits Declaration 2025 - Information Sheet |
| Network | The Road Train 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 road train access include: |
Type 1 Road Trains
Information on the requirements for operating a Type 1 Road Train in NSW is available in the:
- Type 1-A double access fact sheet (PDF, 158.59 KB)
- Modular B-triple fact sheet (PDF, 132.02 KB)
- B-triple access fact sheet (PDF, 162.9 KB)
- A-B-triples fact sheet (PDF, 202.33 KB)
- Rigid Truck Combination fact sheet (PDF, 107.63 KB)
Type 2 A-triple road trains
A Type 2 A-triple is a combination of a prime mover towing three trailers in which:
- the first semitrailer is connected to the prime mover by a roll coupled connection; and
- the second and third trailers are dog trailers.
A-triple road trains are not eligible to operate at Higher Mass Limits (HML) in NSW.