The fastest way to lose a tint customer’s trust is to install film that gets them pulled over. Every reputable window tint shop should walk customers through the basics of their state’s tint laws before the film goes on. Here are the five points that come up most often.
1. VLT limits depend on the window position
Visible Light Transmittance (VLT) is the percentage of light a film lets through — a 35% film lets 35% through. Almost every state sets different VLT minimums for the windshield, front side windows, rear side windows, and rear window. Front side windows are the most regulated; back rows are usually the most permissive. A good shop confirms the customer’s state limits per window before quoting.
2. Windshield film is almost always restricted
Most states only allow a non-reflective tint strip along the top few inches of the windshield (down to the AS-1 line), not full-windshield tint. Clear ceramic films that block heat and UV without darkening are a popular legal alternative customers rarely know about.
3. Medical exemptions exist — and need paperwork
Many states allow darker tint for drivers with documented medical conditions (lupus, photosensitivity, and others). The exemption usually requires a signed physician form kept in the vehicle. Shops that know the local process turn a “sorry, that’s illegal” into a solved problem.
4. Reflectivity and color have their own rules
Beyond darkness, many states cap how reflective or mirrored a film can be, and a few prohibit specific colors (red and amber are common bans). Metalized films are where this trips people up.
5. Out-of-state vehicles follow the registration state
A customer registered in a neighboring state generally has to meet that state’s limits, not the one where they’re getting the install. Confirm the registration before you quote.
Make compliance part of the workflow
The shops that handle this best bake state VLT limits into their quoting tool so an illegal combination never gets sold in the first place. That’s exactly how purpose-built window tint shop software like SalesThumb treats film type and VLT — as first-class fields, not free-text notes.