Any person who is less than eighteen years of age and operating a Class III electric bicycle and any person who is a passenger on a Class III electric bicycle, regardless of age, shall wear a properly fitted and fastened bicycle helmet.
S.D. Codified Laws § 32-20B-14
Helmet requirement for Class III electric bicycle
Source: SL 2019, ch 135, § 6.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.