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South Dakota Motorcycle Helmet Law Laws (2026)

Conditional: South Dakota requires a helmet only for riders under 18; adults are exempt.

ConditionalVerified Jun 18, 2026

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South Dakota requires a helmet only for riders under 18; adults are exempt. See SDCL 32-20-4.

Official source: sdlegislature.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Motorcycle Helmet Law in states bordering South Dakota

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IowaPermitted
Iowa has no motorcycle helmet requirement at any age for riding on the road. See Iowa Code 321.275.
Verified Jun 18, 2026 · Source: legis.iowa.gov · Full Iowa rule →
MinnesotaConditional
Minnesota requires a helmet only for riders under 18 and for anyone riding on a motorcycle instruction permit. See Minn. Stat. 169.974.
Verified Jun 18, 2026 · Source: revisor.mn.gov · Full Minnesota rule →
MontanaConditional
Montana requires a helmet only for operators and passengers under 18. See MCA 61-9-417.
Verified Jun 18, 2026 · Source: mca.legmt.gov · Full Montana rule →
NebraskaConditional
Since a 2024 change (LB1004), Nebraska requires a helmet unless the rider is 21 or older, holds a Class M license, and has completed an approved safety course. See Neb. Rev. Stat. 60-6,279.
Verified Jun 18, 2026 · Source: nebraskalegislature.gov · Full Nebraska rule →
North DakotaConditional
North Dakota requires a helmet only for riders under 18. A passenger riding with an operator who must wear a helmet has to wear one too. See N.D.C.C. 39-10.2-06.
Verified Jun 18, 2026 · Source: ndlegis.gov · Full North Dakota rule →
WyomingConditional
Wyoming requires a helmet only for riders under 18; adults are exempt. See Wyo. Stat. 31-5-115.
Verified Jun 18, 2026 · Source: wyoleg.gov · Full Wyoming rule →

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