Cal. Veh. Code § 12506
The department may issue a temporary driver's license to any person applying for a driver's license, to any person applying for renewal of a driver's license, or to any licensee whose license is required to be changed, added to, or modified. Notwithstanding paragraph (3) of subdivision (a) of Section 12805, the department may issue a temporary driver's license to an applicant who has previously been licensed in this state or in any other state, territory, or possession of the United States, the District of Columbia, the Commonwealth of Puerto Rico, or the Dominion of Canada, notwithstanding that the applicant has failed the written examination on the person's first attempt.
A temporary license permits the operation of a motor vehicle upon the highways for a period of 60 days, if the licensee has the temporary license in his or her immediate possession, and while the department is completing its investigation and determination of all facts relative to the applicant's right to receive a license. The temporary license is invalid when the applicant's license has been issued or refused.
Ca. Veh. Code § 12506