Answer :
**ANSWER**
3.5-4 years
**EXPLANATION**
Pyrotechnic signaling devices (including aerial flares and handheld signals) expire 42 months after the date of manufacture in accordance with the Coast Guard requirements …
3.5-4 years
**EXPLANATION**
Pyrotechnic signaling devices (including aerial flares and handheld signals) expire 42 months after the date of manufacture in accordance with the Coast Guard requirements …
