There are also many laws regarding window tinting. To read more about the Laws on Delmarva, visit the following links:
Delaware (scroll to the bottom of link)- http://www.dmv.de.gov/services/driver_services/drivers_license/dr_lic_equipment.shtml
Maryland – http://www.mva.maryland.gov/about-mva/info/58000ASE/58000-04T.htm
Virginia – http://law.lis.virginia.gov/vacode/46.2-1052/