46 C.F.R. § 31.40-15 Cargo Ship Safety Radio Certificate—T/ALL.
Title 46 - Shipping
Every tankship equipped with a radio installation on an international voyage must have a Cargo Ship Safety Radio Certificate. Each radio installation must meet the requirements of the Federal Communication Commission and the International Convention for Safety of Life at Sea. [USCG-1999–4976, 65 FR 6500, Feb. 9, 2000]
Title 46: Shipping
PART 31—INSPECTION AND CERTIFICATION
Subpart 31.40—Certificates Under International Convention for Safety of Life at Sea, 1974
§ 31.40-15 Cargo Ship Safety Radio Certificate—T/ALL.

