Section 87 in The Petroleum And Natural Gas (Safety In Offshore Operations) Rules, 2008
87. Systems for internal and external communication .-(1) Temporarily or permanently manned facilities shall be equipped with communication systems making internal communication on the facility, as well as between the facility and ships, aircraft and land, possible at all times.
(2)These facilities shall be equipped with alarm systems (sound and light alarms for various situations of hazards including evacuation) capable of alerting the personnel to situations of hazard and accident at all times.(3)There shall be established at least two independent warning methods to shore, preferably by means of permanent communication systems, on permanently manned facilities.
