46 C.F.R. § 25.25-19 Visual distress signals.
Title 46 - Shipping
Each uninspected passenger vessel must meet the visual distress signal requirements of 33 CFR part 175 applicable to the vessel. [USCG-1999–5040, 67 FR 34776, May 15, 2002]
Title 46: Shipping
PART 25—REQUIREMENTS
Subpart 25.25—Life Preservers and Other Lifesaving Equipment
§ 25.25-19 Visual distress signals.