s 58 Entry for replacing, repairing or altering pipes
58.—(1) Subject to section 60, any person authorised by a gas transporter may, after 7 days’ notice to the occupier of any premises, or to the owner of the premises if they are unoccupied, enter the premises for the purpose of —(a) placing a new gas plant in the place of any existing gas plant which has already been lawfully placed; or (b) maintaining, inspecting, repairing, removing or altering any existing gas fitting. (2) Despite subsection (1), in the case of an emergency arising from any defect in a gas plant or gas fitting, the person authorised by the gas transporter may immediately and without notice enter any premises for the purposes referred to in that subsection, but notice of the entry and the justification for it must then be given as soon as possible after the occurrence of the emergency.