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HF 766 Iowa House · 2025-2026 Regular Session

A bill for an act relating to motor vehicle window tint, and making penalties applicable.

HF 766 modifies regulations for motor vehicle window tint, directly affecting individuals who operate vehicles on Iowa highways. The bill establishes specific light transmittance standards in state law, removing the Department of Transportation's authority to set these rules. It prohibits front windshields from having less than 70% light transmittance and side windows immediately next to or forward of the driver from having less than 50% light transmittance. Operating a vehicle in violation of these standards would be subject to a scheduled fine.
Issues: ✓ TransportationSupports TransportationEstablishes mandatory safety standards for vehicle window tint (70% front windshield, 50% side windows), directly enhancing highway safety visibility per transportation infrastructure regulations.95% confidence
Bill status signed all 5 stages cleared
Introduction
Mar 2025
Committee Review
Feb 2026
House Passage
Mar 2025
Senate Passage
Mar 2026
Signed into Law
May 2026
Introduced Mar 5, 2025 Signed May 15, 2026
Maddy AI version diff · 3 comparisons

What changed between versions

Enrolled → Enrolled with Governor's Action · 1 edit · May 15, 2026
MINOR
The bill text remains substantively unchanged, retaining the same rules for motor vehicle window tint transparency and exemptions for law enforcement. The only differences are cosmetic formatting adjustments and the addition of a title header to the enrolled version.
TECHNICAL

Added a title header ('AN ACT RELATING TO MOTOR VEHICLE WINDOW TINT...') and reorganized the layout of signatures and certification text to match standard enrolled bill formatting.

Floor votes · Senate Mar 23, 2026 · House Mar 25, 2025

How they voted

32–14
Passed · 3 other
Total votes 49
Mar 23, 2026
D Democratic15
4 Yea 10 Nay 1
66% Nay
R Republican34
28 Yea 4 Nay 2
82% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
21
Key actions
8
Committee
6
Amendments
1
May 15, 2026
Signed into law
Signed by Governor.
lower
Mar 23, 2026
Upper · Passed
Passed Senate, yeas 31, nays 16.
upper
Feb 11, 2026
Upper · Passed
Committee report, recommending passage.
upper
Feb 4, 2026
Legislature · Passed
Subcommittee recommends passage.
legislature
Jan 29, 2026
Legislature · Passed
Subcommittee Meeting: 02/04/2026 11:30AM Senate Lounge.
legislature
Jan 27, 2026
Upper · Passed
Subcommittee reassigned: Warme, Townsend, and Zumbach.
upper
Mar 27, 2025
Upper · Passed
Subcommittee: Klimesh, Townsend, and Zumbach.
upper
Mar 26, 2025
Committee
Referred to Transportation.
upper
Mar 25, 2025
Lower · Passed
Passed House, yeas 72, nays 25.
lower
Mar 18, 2025
Introduced
Amendment H-1120 filed.
lower
Mar 5, 2025
Introduced
Introduced, placed on calendar.
lower
0 primary · 0 co-sponsors

Sponsors

No sponsor information available.