California Code, Vehicle Code - VEH § 12517.4

(a) The driver certificate shall be issued only to applicants meeting all applicable provisions of this code and passing the examinations prescribed by the department and the Department of the California Highway Patrol. The examinations shall be conducted by the Department of the California Highway Patrol, pursuant to Sections 12517, 12519, 12522, 12523, and 12523.5.

(b) A temporary driver certificate shall be issued by the Department of the California Highway Patrol after an applicant has cleared a criminal history background check by the Department of Justice and, if applicable, the Federal Bureau of Investigation, and has passed the examinations and meets all other applicable provisions of this code.

(c) A permanent driver's certificate shall be issued by the department after an applicant has passed all tests and met all applicable provisions of this code. Certificates are valid for a maximum of five years and shall expire on the fifth birthday following the issuance of an original certificate or the expiration of the certificate renewed.

(d) A holder of a certificate may not violate any restriction placed on the certificate. Depending upon the type of vehicle used in the driving test and the abilities and physical condition of the applicant, the Department of the California Highway Patrol and the department may place restrictions on a certificate to assure the safe operation of a motor vehicle and safe transportation of passengers. These restrictions may include, but are not limited to, all of the following:

(e) A holder of a certificate may not drive a motor vehicle equipped with a two-speed rear axle unless the certificate is endorsed: “May drive vehicle with two-speed rear axle.”

(f) This section shall become operative on September 20, 2005.