IS MY MOD LEGAL?

Headlight & Taillight Tint in Iowa

Illegal

Smoked or tinted film on headlights and taillights is illegal in Iowa. Headlights must emit white light and taillights must show red at the required visibility distance, and tint that dims or discolors them violates those requirements.

Verified against primary sources · August 2026

What the law says

Smoked or tinted film on headlights and taillights is illegal in Iowa. Headlights must emit white light and taillights must show red at the required visibility distance, and tint that dims or discolors them violates those requirements. Iowa additionally requires all originally manufactured lighting equipment to be kept in working condition. No state expressly permits smoked lamp film; the violation is the loss of required color or visibility distance, which any meaningful tint causes.

Specific Limits

Film permitted
No
Headlight color
white
Taillight color
red

Exceptions & Exemptions

Iowa law prohibits any covering, coating, or tinting that reduces the light output or changes the color of headlights from white or amber

Statute

Iowa Code §§ 321.385, 321.387

Read the statute →

Frequently Asked Questions

Are headlight & taillight tint legal in Iowa?
Smoked or tinted film on headlights and taillights is illegal in Iowa. Headlights must emit white light and taillights must show red at the required visibility distance, and tint that dims or discolors them violates those requirements.
What are the exact headlight & taillight tint limits in Iowa?
Film permitted: No. Headlight color: white. Taillight color: red. Source: Iowa Code §§ 321.385, 321.387.
Are there exceptions for headlight & taillight tint in Iowa?
Iowa law prohibits any covering, coating, or tinting that reduces the light output or changes the color of headlights from white or amber

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