§ 185.614 § 185.614 Portable watertight containers for distress flares and smoke signals. 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]
46 CFR §185.614
46 CFR Part 185
TL;DR
§ 185.614 § 185.614 Portable watertight containers for distress flares and smoke signals.