Rhode Island Code of Regulations
Title 280 - Department of Revenue
Chapter 30 - Division of Motor Vehicles
Subchapter 15 - Safety and Emissions
Part 7 - Rules and Regulations Concerning an Act Relating to Motor Vehicles - Sunscreening Devices
Section 280-RICR-30-15-7.5 - Standards and Tests to Measure the Percentage of Reflective and Transmittance of Light

A. Any person, firm, corporation or other entity installing a sunscreen device such as described in R.I. Gen. Laws § 31-23.3-2 on the windows or windshield of any vehicle shall provide and affix a label to the front window not to exceed one and one-half (1-1/2) square inches in size, which contains not only the installer's name and the percentage of light transmittance, which shall be not less than seventy percent (70%) measured perpendicular to the surface of the glass, but also certifies that any "after manufacture" window tinting material which may have been installed and any equipment such as outside mirrors, used so the driver has a clear view of the highway, meet the requirements of 49 C.F.R. § 571.205, incorporated in § 7.3 of this Part. The federal safety standards, contained in 49 C.F.R. §§ 571.101 through 571.302 are incorporated by reference in § 7.3 of this Part.

B. Tests: "After Manufacture" window tint may be subject to such further inspection and tests with reference to any violation of the act relating to sunscreening devices, as may be appropriate. Light transmission may be measured with the Model AC Tint Meter put out by Laser Labs of Scituate, Massachusetts or another suitable calibrating Tint Meter selected and approved by the Assistant Director for Motor Vehicle or his/her designee. Any such further inspection and tests will be conducted by the law enforcement agency alleging violation of the act relating to sunscreening devices.