46 C.F.R. § 153.409 High level alarms.
Title 46 - Shipping
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: (a) That gives an audible and visual alarm before the tank fills to 97 percent of its capacity; (b) That can be seen and heard where cargo transfer is controlled and on the open deck; (c) Whose operation can be checked prior to each loading; and (d) That must be marked as described in §153.408(c)(6) with the legend “HIGH LEVEL ALARM.” [CGD 78–128, 47 FR 21209, May 17, 1982; 47 FR 27293, June 24, 1982]
Title 46: Shipping
PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS
Subpart B—Design and Equipment
Cargo Gauging Systems
§ 153.409 High level alarms.
