Most passenger vehicles registered in Georgia are capped at 32% VLT on the front side windows, with a windshield eyebrow strip allowed above the AS-1 line. North Carolina sets its front-side limit at 35%. If you live in Hayesville and work in Hiawassee, the stricter of the two is the number to build to.
VLT — visible light transmission — is the percentage of light that makes it through the glass and the film together. That last part matters. Factory glass is rarely 100%; a lot of newer vehicles ship with lightly tinted side glass from the plant, which means a 35% film can land you under the legal limit once it's measured on the car.
Rear side windows and the back glass are where you have room. On most vehicles you can go substantially darker behind the driver, which is why the hybrid build — ceramic at the legal limit up front, darker carbon in the back — is our most requested package.
Medical exemptions exist in both states and multi-purpose vehicle classifications change the math on SUVs and trucks. Bring documentation and we'll work to it. What we won't do is install a knowingly illegal front window and hand you the ticket.