ACC Minister Maryan Street took the unusual step of issuing a statement in the name of the Labour Party because ACC is proposing rates for next year -- after the election.
The Government traditionally determines new levy rates, which may or may not differ from those proposed by ACC.
Ms Street said ACC was proposing a motor vehicle levy for next year of $287, up from $254 this year.
Under the change Labour would promote, next year's levy would reduce to about $203.
"Petrol and food price increases, together with high interest rates, have created additional spending constraints on families this year," Ms Street said.
"There was a sizeable increase in the motor vehicle levy last year and I don't want to see that repeated.
"If we did, I think we would run the risk of people failing to register their vehicles."
She said a range of factors influenced the proposed levy rates, including injury claim numbers, medical and surgical costs and rehabilitation rates.
