Commonwealth Consolidated Acts Commonwealth Consolidated Acts(1) For the purposes of determining the number of trailers that a prime mover or truck is nominated to haul:
(a) a converter dolly and a semi trailer when used together are to be regarded as one trailer; and
(b) a low loader dolly and a low loader when used together are to be regarded as one trailer.
(2) To avoid doubt, nothing in this section affects a requirement that a separate annual registration charge be paid for each converter dolly or low loader dolly and for each semi trailer.