(1)  The floor of a bus must be of sound construction and have a non-slip surface.

(2)  The framework of the roof and body of a bus must be constructed of –

(a) steel; or

(b) wood suitably strengthened with steel at all joints; or

(c) other material approved by the Registrar.

(3)  The panelling of the body of a bus must be –

(a) metal; or

(b) fibreglass; or

(c) other material approved by the Registrar.

(4)  The panelling of the roof of a bus must be waterproofed, and constructed of –

(a) metal; or

(b) fibreglass; or

(c) other material approved by the Registrar.

(5)  The interior of the body of a bus must be suitably lined.

(6)  All parts of a bus that are connected by nuts, bolts or studs and subject to vibration must be fastened by –

(a) locknuts; or

(b) castellated nuts effectively pinned with a split pin; or

(c) nuts with spring or locknut washers approved by the Registrar.