NORTH DAKOTA WINDOW TINT LAWS

North Dakota Window Tint Law: Current State Guidance

The North Dakota state government Highway Patrol FAQ currently states that the front windshield must allow at least 70% light transmission below the AS-1 line or below the top five inches, other windows must allow at least 35% light transmission, and windows behind the operator may be darker when the vehicle has outside mirrors on both sides. The state also says factory tint must be included when calculating total tint.

Source: North Dakota State Government — Highway Patrol Questions. Laws and enforcement guidance can change, so verify the current rule before installation.

What Does VLT Mean?

VLT means visible light transmission: the percentage of visible light that passes through the combined glass and film. A lower VLT number appears darker. The legal calculation concerns the combined result, not merely the number printed on a roll of film.

Factory Privacy Glass Matters

Factory-dark rear glass is not the same thing as an aftermarket film shade. Because the state guidance says factory tint is included in total tint calculations, the starting glass matters. The automotive simulator asks about factory privacy glass so the visual preview and selection process can start from the right baseline.

Common Shade Questions

Drivers frequently compare 50%, 35%, 20% and 5%. Do not assume a percentage is legal on every piece of glass. Windshield, front-side and rear-window rules differ, and the vehicle’s existing glass affects the combined VLT.

Use This Page as the Legal Hub

This page owns the North Dakota legal-intent topic. Shade appearance belongs on the tint-percentage page; pricing belongs on the cost page. Keeping those topics separate prevents several Bismarck pages from competing for the same search query.