8. Regulation 21 (Number, position and size of entrances and exits) shall not apply—
(a)in so far as it consists of paragraphs (4) and (6) in the case of a vehicle registered before 1st April 1959 if it is provided with two exits so placed as not to be on the same side of the vehicle;
(b)in so far as it consists of paragraph (6) in the case of a vehicle registered on or after 1st April 1959 and before 28th October 1964 which has a seating capacity exceeding 45 passengers if—
(i)the vehicle is provided with two exits (of which neither is a secondary emergency exit) and those exits are not on the same side of the vehicle, and
(ii)in a case where those exits are so placed that the distance between their centres is less than 3.05 metres, a secondary emergency exit is provided in such a position that there is a distance of not less than 3.05 metres between the nearest points of the openings of that exit and of whichever of the exits mentioned in sub-paragraph (i) above is the nearer to that exit. For the purpose of this paragraph the reference to the distance between the the centres and between the nearest points of the openings of the two exits there mentioned shall be construed in accordance with Regulation 21(1)(e);
(c)in so far as it consists of paragraph (9)—
(i)in the case of a vehicle registered before 1st April 1959 (not being a single-decked vehicle having a permanent top) if it is provided with two exits so placed as not to be on the same sides of the vehicle; or
(ii)in the case of a vehicle which—
(A)is provided with a platform such as is mentioned in proviso (i) to Regulation 21(4); or
(B)has a seating capacity not exceeding 14 passengers, if one means of exit and entrance is provided and is placed behind the rear wheels.