California Code, Vehicle Code - VEH § 1667

(a) As part of its motor vehicle registration and registration renewal process, other than upon the initial registration of a new motor vehicle, the department shall inform motor vehicle owners of the vehicle smog indexing program. That notice shall be in the form developed by the State Air Resources Board in consultation with the department pursuant to subdivision (c) of Section 44254 of the Health and Safety Code.

(b) This section shall become inoperative five years from the date determined pursuant to Section 32 of the act adding this section, and on the January 1 following that date is repealed.