Coronavirus (COVID-19) updates from the Australian Government

What is second stage of manufacture?

Second stage of manufacture (SSM) involves modifying or adding to a new vehicle (the base vehicle) to create an alternate vehicle. For example, adding an ambulance, motorhome or fire tender body to a new cab chassis.

This guide covers SSM:

  • under a vehicle type approval
  • by a registered automotive workshop, and
  • during the transitional period.

Latest version

  • Second stage of manufacture of vehicles – Overview PDF: 494 KB

Updated June 2022