Idaho window tint law
In Idaho, a passenger car's front side windows must let in at least 35% of light; rear side windows: at least 20% of light in; rear window: at least 35% of light in. Source: Idaho Code §49-944 (last amended 2023), checked November 2026.
| Front side windows | 35% At least 35% (plus or minus 3%), reflectance no more than 35%. |
|---|---|
| Rear side windows | 20% At least 20% (plus or minus 3%), reflectance no more than 35%. |
| Rear window | 35% At least 35% (plus or minus 3%), reflectance no more than 35%. |
| Windshield | Nonreflective film only above the AS-1 line (or the top 6 inches if no AS-1 line). |
| Tolerance | plus or minus 3% |
| Medical exemption | With a licensed physician's written verification carried in the vehicle: windshield film to 70% and windows to 20% (each plus or minus 3%). |
The Idaho front-side limit on a car
Levels we picture that meet the front-side limit: 70% (light)50% (medium-light)35% (medium)
Source
Idaho Code §49-944 (last amended 2023)
“a light transmission of not less than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%) ... may be applied to the front side vents, front side windows”
Checked November 2026 (read from an archived copy of the official page). A summary of the passenger-car rules, not legal advice: laws change, so check the source or ask a local tint shop before you buy.
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