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Heavy vehicle certification information for customers – Patrick Chu

Patrick Chu recertification update for customers – 2 September 2019

The Transport Agency recently had independent experts conduct further in-depth reviews of revoked certifications issued by Patrick Chu. As a result, new exemptions are being granted to around 500 vehicles with revoked towing components, with careful consideration given to the original safety concerns discovered in Mr Chu’s work.

In addition, two new ways of working for heavy vehicle specialist certifiers have been developed by Heavy Vehicle Engineers, with support from the Transport Agency.

Please have a look at the changes to exemptions and processes.


The Transport Agency began investigating Auckland based heavy vehicle specialist certifier (HVSC) Patrick Chu in 2018 following safety concerns over the certifications issued for several heavy vehicle components.

The April 2019 revocation of certifications for drawbars and drawbeams on heavy vehicles follows a revocation in December 2018 related to towbars on heavy vehicles including small trucks, tipper trucks, motor homes and goods vans.