California Code, Vehicle Code - VEH § 4760

(a)(1) Except as provided in subdivision (b) or (d), the department shall refuse to renew the registration of a vehicle if the registered owner or lessee has been mailed a notice of delinquent parking violation relating to standing or parking, the processing agency has filed or electronically transmitted to the department an itemization of unpaid parking penalties, including administrative fees pursuant to Section 40220, and the owner or lessee has not paid the parking penalty and administrative fee pursuant to Section 40211, unless he or she pays to the department, at the time of application for renewal, the full amount of all outstanding parking penalties and administrative fees, as shown by records of the department, or the itemization of unpaid parking penalties has been rescinded pursuant to Section 40220.

(2) When the department receives the full amount of all outstanding parking penalties and administrative fees pursuant to paragraph (1), it shall issue a receipt showing each parking penalty and administrative fee that has been paid, the processing agency for that penalty and fee, and a description of the vehicle involved in the parking violations. The receipt shall also state that, to reduce the possibility of impoundment under Section 22651 or immobilization under Section 22651.7 of the vehicle involved in the parking violation, the registered owner or lessee may transmit to that processing agency a copy or other evidence of the receipt.