In relation to passenger seating, a bus must meet the following requirements:

(a) each seat must be securely fastened to, or form part of, the body of the bus and be so constructed that reasonable comfort and adequate support is provided for passengers;

(b) a floor space of not less than 200 millimetres must be provided at the front of each seat measured from the vertical plane at the front extremity of the cushion;

(c) in the case of front-facing seats, the horizontal distance between the inside back of each seat and the back of the seat immediately in front must not be less than –

(i) 600 millimetres, in the case of a school bus; or

(ii) 660 millimetres, in the case of any other bus;

(d) the distance between the front of the seat backs of facing seats must not be less than 1.2 metres;

(e) the distance from the floor to the top of each cushion must not be more than 500 millimetres or less than –

(i) 380 millimetres in the case of a school bus; or

(ii) in the case of any other bus –

(A) 300 millimetres if the floor level is interrupted by a wheel housing, engine housing or similar protuberance; or

(B) 400 millimetres in the case of a large bus, and 380 millimetres in the case of a small bus, if the floor level is not interrupted by any protuberance;

(f) the distance from the top of the cushion to the top of the back of each seat must not be less than 380 millimetres;

(g) the distance from the top of the cushion to the bottom of the back of the seat must not be more than 75 millimetres;

(h) the space for each passenger, measured along the front of the seat, must not be less than –

(i) 275 millimetres, in the case of a school bus; and

(ii) 400 millimetres, in the case of any other bus;

(i) the distance from the front to the back of each seat cushion must not be less than 350 millimetres.