(1)  The safety management system for a facility must specify communications systems that, in the event of an emergency, are adequate for communication –

(a) within a facility; and

(b) with any other facility which may be affected by the emergency; and

(c) with the relevant fire authorities and emergency service authorities.

(2)  In particular, the safety management system for a facility must provide for the communications systems to be –

(a) adequate to handle –

(i) a likely emergency in or relating to the facility; and

(ii) the normal operational requirements of the facility; and

(b) protected so as to be capable of operation in an emergency to the extent specified by the formal safety assessment for the facility.