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What vessels must be equipped with a muffler to reduce engine noise?

All vessels

Vessels built after January 1, 1960, operating within five nautical miles from shore

Vessels built after January 1, 1960, operating within five nautical miles from shore are the only vessels that must be equipped with a muffler to reduce engine noise. This regulation does not apply to all vessels, as some may not have engines or may not be navigating within five nautical miles from shore. The regulation also does not apply to sailboats, as they are not powered by engines. Vessels built before January 1, 1960 are exempt from this regulation as well.

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Sailboats only

Vessels built before January 1, 1960

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