S.D. Codified Laws § 42-8-69 (2026)
No owner of a motorboat which is propelled by a motor of more than six horsepower may allow any person under twelve years of age to operate such a motorboat unless such person is accompanied by a person of at least eighteen years of age. This section does not apply to personal watercraft as defined in § 42-8-2. A violation of this section is a Class 2 misdemeanor.
Source: SL 1990, ch 345 ; SL 1997, ch 246 , § 2.