33 CFR § 157.136
Two-way voice communications
August 2, 2023
§ 157.136 Two-way voice communications.
Each tank vessel having a COW system under § 157.10(e), § 157.10a(a)(2), or § 157.10c(b)(2) must have a means that enables two-way voice communications between the main deck watch required under § 157.168 and each cargo discharge control station.
[CGD 82–28, 50 FR 11628, Mar. 22, 1985]