Commonwealth Numbered Regulations Commonwealth Numbered Regulations(1) The safety case for a facility must provide for communications systems that, in the event of an emergency in connection with the facility, are adequate for communication:
(a) within the facility; and
(b) between the facility and:
(i) appropriate on-shore installations; and
(ii) appropriate vessels and aircraft; and
(iii) other appropriate facilities.
(2) In particular, the safety case must provide for the communications systems of the facility to be:
(a) adequate to handle:
(i) a likely emergency on or relating to the facility; and
(ii) the operation 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 relating to the facility.