Iowa’s 2026 act set a 50% front-side window threshold

HF 766 was signed May 15 and took effect July 1.

By Tint News · AI-assisted, source-based reporting

Published October 14, 20261 min read

Historical briefingThis is a newly published summary of an earlier development. Original news/source date: May 15, 2026. The publication date above records when Tint News published this article.

Effective date listed in the legislature’s enrolled-bill index.July 1, 2026 · Iowa, United States

ContextHistorical coverage; dates identify the original development.

Legal status mattersThis is a news summary, not legal advice. The cited authority, jurisdiction and effective date determine what applies. A recommendation or proposal is not an enacted requirement.

Iowa enacted HF 766 on May 15, 2026, with a July 1 effective date. The act rewrites the tint provision in Iowa Code section 321.438.

Its text requires at least 70% light transmission through the windshield and at least 50% through side windows immediately to the driver’s left or right, including a forward side wing. It retains an exception for qualifying law-enforcement vehicles.

The act measures light transmission through the window, rather than a film’s standalone rating. This brief covers the amendment, not every Iowa vehicle-equipment requirement.

Sources & reporting notes

2026 Iowa Acts, chapter 1100: HF 766 Iowa LegislatureAct approved May 15; PDF footer generated June 11. Original publication date not established.
2026 enrolled bills Iowa Legislature

This article is an original, AI-assisted summary of the sources above. It does not claim firsthand reporting or independent product testing. Our editorial standards · Corrections policy