{"data":{"id":"us/46-cfr-130.440","jurisdiction":"us","citation":"46 CFR 130.440","heading":"Communications system.","body":"(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.\n(b) The communications system must be either—\n(1) An alarm that—\n(i) Is dedicated for this purpose;\n(ii) Sounds in the crew accommodations and the normally manned spaces; and\n(iii) Is operable from the pilothouse; or\n(2) A telephone operated from the pilothouse that reaches the master's stateroom, engineer's stateroom, engine room, and crew accommodations that either—\n(i) Is a sound-powered telephone; or\n(ii) Gets its power from the emergency switchboard or from an independent battery continuously charged by its own charger.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER L—OFFSHORE SUPPLY VESSELS","PART 130—VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS","Subpart D—Automation of Unattended Machinery Spaces"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"ca07635e642f153b99f030ae09c342ce50e8473c5c073a272e09e8d33ac1a69a","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-130.430","next":"us/46-cfr-130.450"},"notice":"GroundRules: Original legal text. Not legal advice."}