Veh. Code, § 40512

(a) (1) Except as specified in paragraph (2) and subdivision (b), if at the time the case is called for arraignment before the magistrate the defendant does not appear, either in person or by counsel, the magistrate may declare the bail forfeited and may, in his or her discretion, order that no further proceedings be had in the case, unless the defendant has been charged with a violation of Section 23111 or 23112, or subdivision (a) of Section 23113, and he or she has been previously convicted of the same offense, except if the magistrate finds that undue hardship will be imposed upon the defendant by requiring him or her to appear, the magistrate may declare the bail forfeited and order that no further proceedings shall be had in the case.

(2) If the defendant has posted surety bail and the magistrate has ordered the bail forfeited and that no further proceedings shall be had in the case, the bail retains the right to obtain relief from the forfeiture as provided in Section 1305 of the Penal Code if the amount of the bond, money, or property deposited exceeds seven hundred dollars ($700).

(b) (1) If, at the time the case is called for a compliance appearance before the magistrate, the defendant has entered into a bail installment agreement pursuant to Section 40510.5 but has not made an installment payment as agreed and does not appear, either in person or by counsel, the court may continue the arraignment to a date beyond the last agreed upon installment payment, issue a warrant of arrest, or impose a civil assessment as provided in Section 1214.1 of the Penal Code for the failure to appear.

(2) If, at the time the case is called for a compliance appearance before the magistrate, the defendant has paid all required bail funds and the defendant does not appear, either in person or by counsel, the court may order that no further proceedings shall be had in the case, unless the defendant has been charged with a violation of Section 23111 or 23112, or subdivision (a) of Section 23113, and he or she has been previously convicted of the same offense, except that if the magistrate finds that undue hardship will be imposed upon the defendant by requiring him or her to appear, the magistrate may order that no further proceedings shall be had in the case.

(c) Upon the making of the order that no further proceedings shall be had, all sums deposited as bail shall be paid into the city or county treasury, as the case may be.

(d) If a guaranteed traffic arrest bail bond certificate has been filed, the clerk of the court shall bill the issuer for the amount of bail fixed by the uniform countywide schedule of bail required under subdivision (c) of Section 1269b of the Penal Code.

(e) Upon presentation by a court of the bill for a fine or bail assessed against an individual covered by a guaranteed traffic arrest bail bond certificate, the issuer shall pay to the court the amount of the fine or forfeited bail that is within the maximum amount guaranteed by the terms of the certificate.

(f) The court shall return the guaranteed traffic arrest bail bond certificate to the issuer upon receipt of payment in accordance with subdivision (d).