Except as provided pursuant to § 32-25-7, no person may drive a vehicle upon the national system of interstate highways at a speed in excess of eighty miles per hour. A violation of this section is a Class 2 misdemeanor.
S.D. Codified Laws § 32-25-4
Maximum speed on interstate highways--Violation as misdemeanor
Source: SDC Supp 1960, § 44.0303 (7) as added by SL 1963, ch 253; SL 1985, ch 264, § 4; SL 1989, ch 255, § 124; SL 1996, ch 207, § 1; SL 2015, ch 165, § 26, eff
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.