# The Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Regulation 11: Communication


(1) The duty holder shall make appropriate arrangements—
(a) for giving warning of an emergency, by audible and, where necessary, visual alarm systems, to all persons on the installation; and
(b) for the purpose of emergency response, for communication between—
(i) persons on the installation;
(ii) the installation and persons not on it and engaged in activities in connection with it; and
(iii) the installation and persons beyond it;
and shall ensure that, so far as is reasonably practicable, the arrangements are capable of remaining effective in an emergency.
(2) Subject to paragraph (3), the duty holder shall ensure that—
(a) an illuminated sign provided pursuant to paragraph (1)(a) is—
(i) in the case of a warning of toxic gas, a red flashing sign; and
(ii) in all other cases, a yellow flashing sign; and
(b) an acoustic signal provided pursuant to paragraph (1)(a) is—
(i) in the case of a warning to prepare for evacuation, a continuous signal of variable frequency;
(ii) in the case of a warning of toxic gas, a continuous signal of a constant frequency; and
(iii) in all other cases, an intermittent signal of a constant frequency.
(3) Where an illuminated sign or acoustic signal is in lawful use immediately before the date of coming into force of these Regulations, but it does not meet the requirements of paragraph (2), it shall be sufficient compliance with that paragraph if a change to a sign or signal so complying is made before 20th December 1997.

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Source: https://www.legislation.gov.uk/uksi/1995/743/regulation/11 (the official version)
Page: https://openlegislation.uk/offshore-installations-prevention-of-fire-and-explosion-and-emergency-response-regulations-1995/regulation-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.