33 C.F.R. § 157.136 Two-way voice communications.
Title 33 - Navigation and Navigable Waters
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]
Title 33: Navigation and Navigable Waters
PART 157—RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK
Subpart D—Crude Oil Washing (COW) System on Tank Vessels
Design, Equipment, and Installation
§ 157.136 Two-way voice communications.
