CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER L—OFFSHORE SUPPLY VESSELS (parts 125 to 135) > PART 130—VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS > SUBPART D—Automation of Unattended Machinery Spaces (§130.400 to §130.480) > 130.440—Communications system.

130.440—Communications system.

(a) Each OSV must have a communications system to immediately summon a crew member to the machinery space wherever one of the alarms required by § 130.460 of this subpart is activated.
(b) The communications system must be either—
(1) An alarm that—
(i) Is dedicated for this purpose;
(ii) Sounds in the crew accommodations and the normally manned spaces; and
(iii) Is operable from the pilothouse; or
(2) A telephone operated from the pilothouse that reaches the master's stateroom, engineer's stateroom, engine room, and crew accommodations that either—
(i) Is a sound-powered telephone; or
(ii) Gets its power from the emergency switchboard or from an independent battery continuously charged by its own charger.