HSC §43200: (a) The state board may adopt a regulation to prohibit the sale and registration in this state of a new motor vehicle certified by the state board to which there has not been securely and conspicuousl

(a) The state board may adopt a regulation to prohibit the sale and registration in this state of a new motor vehicle certified by the state board to which there has not been securely and conspicuously affixed on a side window to the rear of the driver or, if it cannot be so placed, to the windshield of the motor vehicle in accordance with paragraph (3) of subdivision (b) of Section 26708 of the Vehicle Code, by the manufacturer a label on which the manufacturer shall endorse clearly, distinctly, and legibly true and correct entries disclosing the following information concerning the motor vehicle: (1) The emission standards adopted by the state board pursuant to Section 43101 that are applicable to that motor vehicle. (2) The information required by Section 43200.1 and related air pollution emissions information as specified by the state board. (b) A regulation may be adopted pursuant to this section only if the state board finds that the regulation is necessary for either of the following: (1) To enforce or ensure compliance with applicable statutes, standards, or procedures relating to vehicle emissions. (2) For the protection or information of consumers. (c) Nothing in this division or in any other statute shall be construed as prohibiting a purchaser from removing the decal required by this section, after the purchaser has taken possession of the vehicle.