Cal. Mil. & Vet. Code § 395.06

(a) A private employer shall consider a former employee who meets the requirements of subdivision (b) as having been on a leave of absence during any period of the former employee’s active service in the National Guard of any state, and is subject to both of the following:
1. (1) If the former position was a full-time position, and not a temporary position, the former employer shall restore the former employee to the former position or to a position of similar seniority, status, and pay without loss of retirement or other benefits, unless the employer’s circumstances have so changed as to make it impossible or unreasonable to do so, and shall not discharge the former employee from the position without cause within one year after restoring them to the position.
2. (2) If the position was a part-time position and not a temporary position, the former employer shall restore the former employee to the former position, or to a position of similar seniority, status, and pay, if any exists, and shall not discharge the former employee from the position without cause within one year after restoring them to the position.
(b) To be eligible for the employment protections specified in paragraph (1) of subdivision (a), the former employee shall meet all of the following requirements:
1. (1) They are an officer or enlisted member of the National Guard of any state.
2. (2) They were called to active duty by the Governor of the state where they serve in the National Guard or by the President of the United States.
3. (3) They received a certificate of satisfactory service in the National Guard of the state where they serve in the National Guard.
4. (4) They are still qualified to perform the duties of the position.
5. (5) If they left a full-time position, they made application for reemployment within 40 days of being released from service. If they left part-time employment, they made application for reemployment within five days of being released from service.
(c) If any employer fails or refuses to comply with this section, the superior court of the county in which the employer maintains a place of business may, upon the filing of a motion, petition, or other appropriate pleading by the person entitled to the benefits of this section, specifically require the employer to comply with this section and compensate the person for any loss of wages or benefits suffered by reason of the employer’s unlawful action. The court shall order a speedy hearing and shall advance it on the calendar. Upon application to the district attorney of the county in which the employer maintains a place of business by any person claiming to be entitled to the benefits of this section, the district attorney, if reasonably satisfied that the person is entitled to these benefits, shall appear and act as attorney for the person in the amicable adjustment of the claim or in the filing of any motion, petition, or other appropriate pleading and the prosecution thereof to specifically require the employer to comply with this section. Fees or court costs shall not be required to be paid by the person applying for these benefits.
(d) Upon application to the city prosecutor of the city in which the employer maintains a place of business by any person claiming to be entitled to the benefits of this section, the city prosecutor, if reasonably satisfied that the person is entitled to these benefits, may appear and act as attorney for the person in the amicable adjustment of the claim or in the filing of any motion, petition, or other appropriate pleading and the prosecution thereof to specifically require the employer to comply with this section. Fees or court costs shall not be required to be paid by the person applying for these benefits.