{"data":{"id":"us/46-cfr-153.409","jurisdiction":"us","citation":"46 CFR 153.409","heading":"High level alarms.","body":"When Table 1 refers to this section or requires a cargo to have a closed gauging system, the cargo's containment system must have a high level alarm:\n(a) That gives an audible and visual alarm before the tank fills to 97 percent of its capacity;\n(b) That can be seen and heard where cargo transfer is controlled and on the open deck;\n(c) Whose operation can be checked prior to each loading; and\n(d) That must be marked as described in § 153.408(c)(6) with the legend “HIGH LEVEL ALARM.”","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES","PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS","Subpart B—Design and Equipment"],"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":"38958164a5b050ce4c847ab059a2bee7b24ff190d58e7bda9df171caac5afedb","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-153.408","next":"us/46-cfr-153.430"},"notice":"GroundRules: Original legal text. Not legal advice."}