Senate File 350 - Introduced SENATE FILE 350 BY EDLER A BILL FOR An Act relating to motor vehicle window tint, and making 1 penalties applicable. 2 BE IT ENACTED BY THE GENERAL ASSEMBLY OF THE STATE OF IOWA: 3 TLSB 2067XS (4) 90 th/ns

S.F. 350 Section 1. Section 321.438, subsection 2, Code 2023, is 1 amended to read as follows: 2 2. a. (1) A person shall not operate on the highway 3 a motor vehicle equipped with a front windshield , to which 4 material that reduces the transmission of light has been 5 applied, except a windshield may have such material applied 6 that allows at least twenty-five percent light transmittance 7 and does not exceed a luminous reflectance of twenty-five 8 percent above the manufacturer’s AS-1 line or within the top 9 five inches of the windshield. 10 (2) A person shall not operate on the highway a motor 11 vehicle equipped with a side window to the immediate right 12 or left of the driver operator , or a sidewing forward of and 13 to the left or right of the driver which is excessively dark 14 or reflective so that it is difficult for a person outside 15 the motor vehicle to see into the motor vehicle through the 16 windshield, window, or sidewing operator, that allows less than 17 twenty-five percent light transmittance or exceeds a luminous 18 reflectance of twenty-five percent . 19 (3) A person shall not operate on the highway a motor 20 vehicle equipped with a window other than as described in 21 subparagraphs (1) and (2) that allows less than twenty-five 22 percent light transmittance or exceeds a luminous reflectance 23 of twenty-five percent. This subparagraph does not apply to 24 a person operating a motor vehicle equipped with an outside 25 mirror attached to each side of the vehicle if the mirrors 26 comply with section 321.437. 27 a. The department shall adopt rules establishing a minimum 28 measurable standard of transparency which shall apply to 29 violations of this subsection . 30 b. This subsection does not apply to a person who operates 31 a motor vehicle owned or leased by a federal, state, or local 32 law enforcement agency if the operation is part of the person’s 33 official duties. 34 EXPLANATION 35 -1- LSB 2067XS (4) 90 th/ns 1/ 3

S.F. 350 The inclusion of this explanation does not constitute agreement with 1 the explanation’s substance by the members of the general assembly. 2 Under current law, a person is prohibited from operating 3 a motor vehicle equipped with a front windshield, a side 4 window to the immediate right or left of the driver, or a 5 sidewing forward of and to the left or right of the driver 6 (window) which is excessively dark or reflective so that it is 7 difficult for a person outside the motor vehicle to see into 8 the motor vehicle through the window. Under rules adopted 9 by the department of transportation (DOT) (761 IAC 450.7), 10 “excessively dark or reflective” means the window does not 11 meet a minimum standard of transparency of 70 percent light 12 transmittance. However, the requirement does not apply to 13 a person who operates a motor vehicle owned or leased by 14 a federal, state, or local law enforcement agency if the 15 operation is part of the person’s official duties. 16 This bill strikes the authority of the DOT to adopt rules 17 establishing a minimum measurable standard of transparency 18 and instead prohibits a person from operating on the highway 19 a motor vehicle equipped with a front windshield to which 20 light-transmission-reducing material has been applied. 21 However, a windshield may have light-transmission-reducing 22 material applied that allows at least 25 percent light 23 transmittance and does not exceed a luminous reflectance of 25 24 percent above the manufacturer’s AS-1 line or within the top 25 five inches of the windshield. A person is also prohibited 26 from operating a motor vehicle with a side window to the 27 immediate right or left of the operator, or a sidewing forward 28 of and to the left or right of the operator, that allows less 29 than 25 percent light transmittance or exceeds a luminous 30 reflectance of 25 percent. 31 Under the bill, a person is prohibited from operating a motor 32 vehicle equipped with any other window that allows less than 25 33 percent light transmittance or exceeds a luminous reflectance 34 of 25 percent. However, the bill does not limit the light 35 -2- LSB 2067XS (4) 90 th/ns 2/ 3

S.F. 350 transmittance or luminous reflectance of such other windows if 1 the vehicle is equipped with an outside mirror attached to each 2 side of the vehicle if the mirrors comply with Code section 3 321.437. 4 A violation of Code section 321.438 is punishable by a 5 scheduled fine of $70. 6 -3- LSB 2067XS (4) 90 th/ns 3/ 3