The exhaust of every internal combustion engine used on any motorboat shall be effectively muffled by equipment so constructed and used as to muffle the noise of the exhaust in a reasonable manner. The use of cutouts is prohibited, except for racing boats competing in a regatta or boat race approved as provided by rules adopted pursuant to § 32-3A-1, and for such racing boats while on trial runs, during a period not to exceed forty-eight hours immediately preceding a regatta or race and for motorboats while competing in official trials for speed records during a period not to exceed forty-eight hours immediately following a regatta or race. A violation of this section is a Class 2 misdemeanor.

Source: SL 1959, ch 125 , § 8; SDC Supp 1960, § 25.1408; SL 1984, ch 273 , § 28; SL 2021, ch 186 , § 8.