California Code, Penal Code - PEN § 5028

(a) Upon the entry of any person who is currently or was previously a foreign national into a facility operated by the Department of Corrections, the Director of Corrections shall inform the person that he or she may apply to be transferred to serve the remainder of his or her prison term in his or her current or former nation of citizenship. The director shall inform the person that he or she may contact his or her consulate and shall ensure that if notification is requested by the inmate, that the inmate's nearest consulate or embassy is notified without delay of his or her incarceration.

(b) Upon the request of a foreign consulate representing a nation that requires mandatory notification under Article 36 of the Vienna Convention on Consular Relations Treaty listed in subdivision (d) of Section 834c, the Department of Corrections shall provide the foreign consulate with a list of the names and locations of all inmates in its custody that have self-identified that nation as his or her place of birth.

(c) The Department of Corrections shall implement and maintain procedures to process applications for the transfer of prisoners to their current or former nations of citizenship under subdivision (a) and shall forward all applications to the Governor or his or her designee for appropriate action.