Deck General · PFDs & Immersion Suits
A lifejacket light required aboard an inspected vessel under 46 CFR must be visible for at least:
- A1 nautical mile✓ Correct
- B2 nautical miles
- C5 nautical miles
- D10 nautical miles
Explanation
Lifejacket lights must be water-activated and visible at a minimum distance of 1 nautical mile in darkness. They allow rescue personnel to locate survivors at night or in limited visibility conditions.
Authority: 46 CFR
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