Non-pyrotechnic VDSs must carry the manufacturer's certification that they meet Coast Guard requirements. They must be in serviceable condition and stowed to be readily accessible. This group includes:
No single signaling device is ideal under all conditions and for all purposes.
Consideration should be given to carrying several types. For example, an aerial flare can be seen over a long distance on a clear night, but for closer work, a handheld flare may be more useful.
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