46 CFR §160.066-11

1. (a)Red aerial pyrotechnic flare distress signals are approved under the procedures of subpart 159.005 of this chapter.
2. (b)The manufacturer must produce a lot of at least 100 signals from which samples for approval testing must be drawn. Approval testing must be conducted in accordance with the operational tests in § 160.066-12 and the technical tests in § 160.066-13. In order for the signal to be approved, the samples must pass both the operational and the technical tests.
3. (c)The approval tests must be performed by an independent laboratory accepted by the Commandant under Subpart 159.010 of this chapter.