A sunscreening device must be nonreflective and may not be red, yellow, or amber in color.
A sunscreening device may be used only along the top of the windshield and may not extend downward beyond the AS1 line. If the AS1 line is not visible, no sunscreening device may be applied to the windshield.
A single sunscreening device may be installed on the sidewings or side windows, or both, located at the immediate right and left of the driver and the side windows behind the driver, or the rearmost window. The sunscreening device must be nonreflective and the combined light transmission of the sunscreening device with the factory or manufacturer-installed sunscreening material must not be less than 27%.
If a sunscreening device is used on the rearmost window, 1 right and 1 left outside rearview mirror is required.
Each vehicle equipped with an after-factory sunscreening device, whether installed by a consumer or professional, at all times must bear a certificate of compliance containing the following information: the percentage of light transmission allowed by the sunscreening device; the identity of the installer by name, address, and telephone number; and the date of installation.
These light transmittance requirements apply to windows behind the driver on pickup trucks but do not apply to windows behind the driver on other trucks, buses, trailers, mobile homes, multipurpose passenger vehicles, and recreational vehicles.