Cal. Bus. & Prof. Code § 2092

(a) The board shall develop a process to give priority review status to the application of an applicant for a physician and surgeon’s certificate who can demonstrate that he or she intends to practice in a medically underserved area or serve a medically underserved population as defined in Section 128565 of the Health and Safety Code.

(b) An applicant may demonstrate his or her intent to practice in a medically underserved area or serve a medically underserved population by providing proper documentation, including, but not limited to, a letter from the employer indicating that the applicant has accepted employment and stating the start date.