S.D. Codified Laws § 32-20B-1
Identifying number required on bicycle sold at retail--Violation as misdemeanor
A person engaged in the business of selling bicycles at retail may not sell any bicycle unless the bicycle has an identifying number permanently stamped or cast on its frame. A violation of this section is a Class 2 misdemeanor.
Source: SL 1982, ch 226, § 7.