In this division:
"exempt combination" means a certain combination that—
(a) complies with the mass and dimension requirements in schedule 1 (Mass and loading requirements for heavy vehicles); and
(b) is 1 of the following:
(i) a tractor-harvester-cutting head trailer combination;
(ii) a tractor with 2 or more implements attached, if the implements are normally used as one unit for agricultural operations;
(iii) a tractor and implement combination towing a fuel trailer or a laser tower;
(iv) an articulated low-loader consisting of a prime mover towing a converter dolly and a semitrailer;
(v) a B-double, or road train, that complies with the vehicle standards in the Road Transport (Vehicle Registration) Regulation 2000 , schedule 1 (Vehicle standards).