46 CFR § 185.614
Portable watertight containers for distress flares and smoke signals
April 15, 2021
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]