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Sirens and Mufflers

San Diego Municipal Code § 63.25.7
in effect
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§63.25.7 Sirens and Mufflers (a) It is unlawful to sound or operate or cause to be sounded or operated a siren on a vessel within the limits of Mission Bay Park. This provision shall not apply to City–owned, operated, or commandeered vessels. This section, 63.25.7, shall not preclude vessels from being provided with sound–producing devices as required by the appropriate Coast Guard regulations. (b) Except as provided in Section 63.25.11, every watercraft equipped with an internal combustion engine operated on Mission Bay shall at all times be equipped with an adequate muffler, in constant operation and properly maintained to prevent any excessive or unusual noise, and no such muffler or exhaust system shall be equipped with a cutout, bypass, or similar device. (Retitled to “Sirens and Mufflers” and amended 5–31–1994 by O–18073 N.S.)
Source: City of San Diego Office of the City Clerk, San Diego Municipal Code and City Charter (docs.sandiego.gov PDFs)URL: https://docs.sandiego.gov/municode/MuniCodeChapter06/Ch06Art03Division00.pdf#page=25Fetched: 10/28/2026

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