Iowa Studded Tires Laws (2026)

Conditional: Studded tires are legal in Iowa only from November 1 through April 1, with studs no more than 1/16 inch.

ConditionalVerified Jun 20, 2026

Studded tires are legal in Iowa only from November 1 through April 1, with studs no more than 1/16 inch. The rest of the year they're prohibited, except on school buses and fire trucks. See Iowa Code 321.442.

Official source: legis.iowa.gov →

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