AS-1 line typically extends between 4 and 6 inches parallel to the top of your windshield. AS-1 designation line is typically marked by glass manufacturer on the top edge of your windshield.

Depending on vehicle, your AS-1 strip may already be tinted. In most states windshield tint must not have any reflectiveness, and illegal colors typically include blue and red.

Some state tint laws specify exact number of inches you are allowed to tint on front windshields. Other states define this windscreen area simply as an AS-1 line. Learn more about AS-1 Line.

Federal vehicle ID label found on driver's front door frame will tell you whether your vehicle is classified as passenger or multi purpose vehicle.

• Passenger vehicles include: sedan, coupe, convertible, station wagon, hardtop and hatchback vehicles.
• Multi-purpose vehicles include: SUV, pickup, van, truck, RV, trailer, bus and minibus.

In most states vehicles fall under these two categories.

Violating window tint laws in New Jersey is punishable with fines up to $1,000 under general motorized vehicle material provisions, though standard roadside tickets written under N.J.S.A. 39:3-74 often carry a base fine around $55 to $100 depending on the local municipal/state schedule.

Fines for second and subsequent offenses can rise to $5,000.

Retailers or shops that violate tint rules (such as failing to post warning signs, register with the Motor Vehicle Commission, verify medical cards or law enforcement status, or properly affix identification labels) face fines up to $5,000.