South Dakota Codified Laws
Chapter 20B - Bicycle Regulation
Section 32-20B-8 - Racing--Exemption from traffic laws.

32-20B-8. Racing--Exemption from traffic laws.
The transportation commission or local authorities may exempt participants in an approved bicycle highway racing event on a highway under their jurisdiction from compliance with any traffic laws otherwise applicable thereto, provided that traffic control is adequate to assure the safety of all highway users.

Source: SL 1982, ch 226, ยง6.