13.—(1) An AILV falling within Category 2 or 3 must be equipped with a plate that is—
(a)securely fixed to the vehicle in a conspicuous and readily accessible position;
(b)marked clearly with the words “SPECIAL TYPES USE”; and
(c)indelibly marked with letters and figures, not less than 4 millimetres high, containing the information specified in sub-paragraph (2).
(2) For each of the speeds listed in paragraph (a) to (e), the plate must indicate each of the relevant maximum weights at which, in the opinion of the manufacturer of the vehicle, the AILV may be used when travelling on roads at or below the speed in question—
(a)20 miles per hour;
(b)25 miles per hour;
(c)30 miles per hour;
(d)35 miles per hour;
(e)40 miles per hour.
(3) The relevant maximum weights are—
(a)in the case of an AILV that is a motor vehicle—
(i)the maximum axle weight for each axle (within the meaning of the note to item 6 of Part 1 of Schedule 8 to the Construction and Use Regulations);
(ii)the maximum gross weight (within the meaning of the note to item 7 of that Part of that Schedule); and
(iii)the maximum train weight (within the meaning of the note to item 8 of that Part of that Schedule);
(b)in the case of an AILV that is a trailer—
(i)the maximum weight for each axle (within the meaning of the note to item 4 of Part 2 of Schedule 8 to the Construction and Use Regulations);
(ii)the maximum load to be imposed on the towing vehicle (within the meaning of the note to item 5 of that Part of that Schedule); and
(iii)the maximum gross weight (within the meaning of the note to item 6 of that Part of that Schedule).
(4) This paragraph does not apply to any vehicle that was manufactured before 29th July 1983(1).
This is the date on which the Road Vehicles (Marking of Special Weights) Regulations 1983 (S.I. 1983/910) came into force.