Cal. Bus. & Prof. Code § 2811.1
(a) The board, upon application and payment of the fee established pursuant to subdivision (h), shall issue a retired license to a registered nurse, if the licensee meets both of the following qualifications:
(g) The board may reinstate a retired license to active status one time only, if the retired licensee fulfills the requirements for renewal of a license, including furnishing fingerprints, paying renewal fees, and providing evidence of the following, as applicable: