Iowa Window Tint Laws (2026)

Info: The windshield must let at least 70% of light through.

InfoVerified Jul 20, 2026

The windshield must let at least 70% of light through. The front side windows and the sidewings (the small vent windows) next to the driver must let at least 50% through — a measurable legal standard that replaced the former 70% administrative rule, effective July 1, 2026. Law-enforcement vehicles are exempt while on duty. (HF 766; Iowa Code 321.438(2))

Official source: legis.iowa.gov →

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