46 C.F.R. § 160.028-2 Type.
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(a) Each signal pistol for launching a parachute distress signal that meets subpart 160.024 of this part must be of the center-firing type having chamber and bore dimensions within the limits indicated by Figure No. 160.028–2(a). (b) A signal pistol for launching an aerial flare not under paragraph (a) of this section may have any chamber and bore dimensions if they are not the dimensions for a conventional round of ammunition.
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PART 160—LIFESAVING EQUIPMENT
Subpart 160.028—Signal Pistols for Red Flare Distress Signals
§ 160.028-2 Type.
