Land Transport Rule 41001: Vehicle Dimensions and Mass 2016 (the rule) provides the dimension limits for vehicles operating on New Zealand roads. Clause 6.49 of the rule requires that the operator of a motor vehicle must apply for and be issued with a permit by the NZ Transport Agency if the vehicle:
has a width and forward distance combination in category 3 or category 4, or
has a height exceeding 5m, or
has a front or rear overhang exceeding 7m, or
has an overall length exceeding 25m, or
exceeds any of the dimension limits specified in category 4.