TowSense modification pathways

Modifying a light vehicle in South Australia

Contact South Australia's Vehicle Standards team before modifying a light vehicle. Use the official application process to establish the requirements for the actual proposal rather than assuming interstate approval applies.

Prepare the vehicle make, model, year, body type, registration evidence and full modification details. The authority's application may also request a VIN or chassis number; this free Navigator does not collect it.

Ask Vehicle Standards whether your project needs a statement of requirements, a Light Vehicle Engineering Signatory report or an inspection. Confirm the specific mass re-rating route before committing to a GVM package.

Follow the authority's advice on supporting documents, inspection and updating registration details. Retain the approval and installation records; this preparation guide is not an approval or engineering assessment.

Prepare a modification evidence worksheetFree evidence preparation for four modification groups across all eight Australian states and territories. No approval or certification is provided.

Preliminary advisory guidance only. This is not engineering certification, registration approval, a roadworthiness inspection or a finding that your vehicle is safe or legal. Confirm the complete modification package with the relevant road authority and an appropriately authorised certifier before proceeding. The paid TowSense assessment is also advisory.