NZTA BAN TYRE LET­TERS

NZ Performance Car - - Team -

Yeah, you read that ti­tle right. In a new round of in-ser­vice-cer­ti­fi­ca­tion (war­rant-of-fit­ness) amend­ments, the New Zealand Trans­port Agency (NZTA) has now made the pres­ence of tyre let­ter­ing a rea­son for re­jec­tion when un­der­go­ing a WOF. The change comes un­der sec­tion 10-1 Tyres and Wheels, which states: “A tyre has had the fol­low­ing in­for­ma­tion re­moved or con­cealed so that the tyre can no longer be iden­ti­fied — man­u­fac­turer, brand, model, load rat­ing, speed rat­ing, stan­dards mark­ings ( where ap­pli­ca­ble) and di­rec­tion of ro­ta­tion (where ap­pli­ca­ble).”

This amend­ment in­cludes vis­ual ex­am­ples of tyre let­ter­ing ob­scur­ing in­for­ma­tion as ref­er­ence ma­te­rial for in­spec­tors.

The word­ing around the use of ex­ter­nal waste­gates has also been al­tered to in­clude the cur­rent prac­tice of a “plumbed-in sys­tem” — which was pre­vi­ously un­men­tioned — and the only per­mit­ted sys­tems, un­der the stan­dards, were those “that feed gasses into their own muf­fled ex­haust sys­tem ex­it­ing be­hind the pas­sen­ger com­part­ment”.

Def­i­ni­tions have also been tight­ened around bumper re­in­force­ment bars and bumper fas­cia with re­gard to al­ter­ing struc­tural com­po­nents, which will af­fect the in­ter­pre­ta­tion of le­gal­i­ties con­cern­ing the likes of front-mount in­ter­cool­ers.

These changes are set to be ef­fec­tive from 1 Novem­ber 2018 on­wards.

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