• Delaware has strict regulations pertaining to tinting windshields.Front-light of black mercedes image by Mladenov from Fotolia.com
  
  Tinting hampers light from passing through the window of an automobile. The two methods of tinting are window darkening and the addition of reflective material. People tint their windshield, side and rear windows for a variety of reasons, including the desire for cooler temperatures, legal medical requirements and aesthetics. Delaware has strict regulations about window tinting dating back to 1992, when the Delaware Window Tinting Law was passed.
  
  

Darkness Level

• In Delaware the level of tint is measured by the percentage of Visible Light Transmission. This is the amount of light that is visible through the darkened window. According to the Delaware Division of Motor Vehicles, "Window tint is prohibited on the front windshield below the top few inches of the windshield (specifically not below the AS-1 masking on the windshield)." AS-1 is the approved safety glass designation from the glass industry. The front side windows of the vehicle are required to allow more than 70 percent light in while the back side and rear windows may allow any level of darkness.
  
  

Reflective Level

• Reflective coatings on windows are similar to the material used on sunglasses.Spectators with mirrored sun-glasses image by Aleksej Kostin from Fotolia.com
  
  Reflective coatings use a metal coat or film to refract light away, similar to mirrored sunglasses. This film reduces the amount of incoming light and cuts glare and heat. TintCenter.com states that there should be no metallic or mirrored appearance for both the front and back side windows.
  
  

Other Regulations

• Other regulations concerning the Delaware Window Tint Law are divided into five categories: Restricted Colors (all colors of tint are allowed), Side Mirrors (when the back window is tinted dual side mirrors are required), Certificate Requirements (tinting film manufacturers do not need certification), Sticker Requirements (a sticker for legal tinting must be placed inside the driver's side window), and Medical Exemption (proof that Delaware exempts the driver for medical purposes).