46 C.F.R. § 122.614 Portable watertight containers for distress flares and smoke signals.
Title 46 - Shipping
Portable watertight containers for distress flares and smoke signals shall be of a bright color, and containers shall be clearly marked in legible contrasting letters at least 12.7 millimeters (0.5 inches) high: “DISTRESS SIGNALS”.
Title 46: Shipping
PART 122—OPERATIONS
Subpart F—Markings Required
§ 122.614 Portable watertight containers for distress flares and smoke signals.