Technical information


Heavy vehicle brake testing: CoF and entry certification brake test protocol and procedure

Published 2015 | Version 11

Like almost all other road vehicles in New Zealand, heavy vehicles are required to undergo entry inspection and a periodic safety check in the form of a certificate of fitness (CoF) inspection. Brake testing is a crucial part of this inspection given the critical role brakes play in overall vehicle safety.

Fit and proper person guidelines

A person or organisation who is responsible for vehicle inspection and certification outcomes is appointed by the NZ Transport Agency. Clause 2.5 (2) (a) of the Land Transport Rule: Vehicle Standards Compliance 2002 includes the requirement for a person to be fit and proper. This document details those requirements.


  • Winter tyres (NZTA website)
    This leaflet gives advice to vehicle owners who have winter tyres fitted to their vehicles
  • Your vehicle failed a smoky exhaust test (NZTA website)
    This pamphlet is written for vehicle owners whose vehicles have failed a WoF or CoF because of a smoky exhaust. It contains information on the causes of exhaust smoke that may help the owner have the vehicle repaired so that it can pass its WoF or CoF.