Regulation 36B shall be amended as follows—
(a) after paragraph (1), there shall be inserted the following paragraph—
(1A) Subject to paragraph (6), this regulation also applies to every motor vehicle which—
(a) is a goods vehicle;
(b) has a maximum gross weight exceeding 16,000kg;
(c) is either—
(i) a vehicle that is constructed or adapted to form part of an articulated vehicle, or
(ii) a rigid vehicle that is constructed or adapted to draw a trailer and has a maximum gross trailer weight which exceeds 5,000kg;
(d) is first used on or after 1st January 1988; and
(e) has, or if a speed limiter were not fitted to it would have, a relevant speed exceeding 60mph.
(b) after paragraph (7), there shall be inserted the following paragraph—
(8) For the purposes of this regulation, a motor vehicle has a maximum gross trailer weight exceeding 5,000kg if—
(a) in the case of a vehicle equipped with a Ministry plate in accordance with regulation 70, the difference between its maximum gross weight and the relevant train weight exceeds 5,000kg;
(b) in the case of a vehicle not equipped with a Ministry plate, but which is equipped with a plate in accordance with regulation 66, the difference between its maximum gross weight and the weight shown on the plate in respect of item 8 of Part I of Schedule 8 exceeds 5,000kg; and
(c) in the case of any other vehicle, the vehicle is designed or adapted to be capable of drawing a trailer with a laden weight exceeding 5,000kg when travelling on a road;
and in sub-paragraph (a) “the relevant train weight” is the train weight shown in column (3) of the plate or, if no such weight is shown, the train weight shown in column (2) of the plate (where the plate is in the form required by Schedule 10) or in column (4) of the plate (where the plate is in the form required by Schedule10A).