At the end of regulation 3, add the following paragraph–
(4) Regulation 13(1), insofar as it requires an employer to ensure that premises are thoroughly cleaned, shall not apply to–
(a) a fire authority in respect of premises attended, for the purpose of fighting a fire or in an emergency, by a fire brigade maintained by that authority; or
(b) the employer of persons who attend a ship in dock premises for the purpose of fighting a fire or in an emergency, in respect of any ship so attended,
and in this regulation, “ship” includes all vessels and hovercraft which operate on water or land and water, and “dock premises” means any dock, wharf, quay, jetty or other place at which ships load or unload goods or embark or disembark passengers, together with neighbouring land or water which is used or occupied, or intended to be used or occupied, for those or incidental activities, and any part of a ship when used for those or incidental activities.