If the owner of the vehicle is a company or corporation or other than a natural person, the annual inspection shall be made during the month designated by the director as the registration month for such legal entity. Vehicles registered as antique motor vehicles and antique motorcycles and which are 40 years old and over shall be inspected biennially. Antique motor vehicles and custom vehicles shall be inspected in the month of May. Without regard to the owner's birth date or registration month, motorcycles, autocycles, and recreational vehicles shall be inspected annually by July 1.

Persons who require for medical reasons aftermarket tinting on the windshield or on the windows to the left and right of the driver may apply for a special permit pursuant to RSA 266:61-a, IX.

[Additional Information:
Please take notice of the important changes to the aftermarket window tint law. Effective September 12, 2024:

What windows are allowed to be tinted without a Waiver?
After-market tinting may be applied to the windows to the left and right of the driver, with not less than 70 percent light transmittance, and the rear windows of a vehicle, with not less than 35 percent light transmittance.

What windows are allowed to be tinted with a Waiver?
After-market tinting may be applied to the windshield and the windows to the left and right of the driver with not less than 35 percent light transmittance.]

The commissioner may waive the requirements of RSA 266:58-a and issue a special permit to a person who for bona fide medical reasons requires aftermarket tinting on the windshield or on the windows to the left and right of the driver and who applies for such permit. Such waiver shall be granted in accordance with this section and shall only authorize the use of aftermarket tinted windows with a light transmittance of not less than 35 percent. In reviewing the application for a permit under this paragraph, the commissioner may seek the advice and recommendation of a medical review board designated by him or her for such purpose.

[Additional Information:
Please take notice of the important changes to the aftermarket window tint law. Effective September 12, 2024:

What windows are allowed to be tinted without a Waiver?
After-market tinting may be applied to the windows to the left and right of the driver, with not less than 70 percent light transmittance, and the rear windows of a vehicle, with not less than 35 percent light transmittance.

What windows are allowed to be tinted with a Waiver?
After-market tinting may be applied to the windshield and the windows to the left and right of the driver with not less than 35 percent light transmittance.]