it is required to contain under the relevant provisions of the said Regulation, and
(ii) in relation in a motor vehicle (in this paragraph called "the drawing vehicle") constructed to form part of an articulated vehicle as defined by regulation 3(1) of the said Regulations of 1973, the train weight as defined by regulation 146 or these Regulations and of which particulars are shown in column (2) of the said Ministry plate opposite to the words "TRAIN WEIGHT" appearing in column (1) Thereof or, if the drawing vehicle is not equipped with a Ministry plate, the maximum train weight for the purposes of paragraph (4)(a)(i) of the said Regulation 42 of which particulars are contained on a plate affixed to the drawing vehicle in accordance with paragraph (2) of that regulation.
"motorway" means a special road—
(a) which in England or Wales (save as otherwise provided by or under regulations made under, or having effect as if made under section 13 of the Act) can only be used by traffic of class I or II of the classes of traffic set out in Schedule 4 to the Highways Act, 1980[1], or
(b) which in Scotland can only be used by traffic of Class I or Class II of the classes of traffic set out in Schedule 2 to the Special Roads Act, 1949[2];
"primary route" means a route, not being a route formed by any part of a motorway, formed
(a) by a length of trunk road,
(b) by length of trunk road together with another road, not being a trunk road, or
(c) by a length of road, not being a trunk road,
being a route as respects which the secretary of State—
in the case at (a) is of the opinion, and in the cases at (b) and (c) after consultation with the highway authority for the road, not being a trunk road, is of the opinion that it provides the most satisfactory route for through traffic between two or more places of traffic importance;
"non-primary route" means a route, not being a primary route or a motorway or part of a primary route or motorway;
"scheduled express carriage" means an express carriage operated in accordance with a timetable and includes a vehicle operating a service in accordance with a time-table contained in an authorisation issued under Council Regulation (EEC) No. 516/72[3] (shuttle services by means or coach and bus between Member States) or under Council Regulation (EEC) No 517/72[4] (regular and special regular services by the said means) both of 28th February 1972;
"school bus" means a vehicle constructed or adapted to carry 12 or more passengers and being used to carry persons to or from school as defined by section 114(1) of the Education Act, 1944[5] and, in Scotland as defined by section 145 of the Education (Scotland) Act 1962[6];
