46 C.F.R. § 185.614 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”. [CGD 85–080, 61 FR 1005, Jan. 10, 1996; 61 FR 24465, May 15, 1996]
Title 46: Shipping
PART 185—OPERATIONS
Subpart F—Markings Required
§ 185.614 Portable watertight containers for distress flares and smoke signals.

