Cal. Bus. & Prof. Code § 2760.1
(a) A registered nurse whose license has been revoked or suspended or who has been placed on probation may petition the board for reinstatement or modification of penalty, including reduction or termination of probation, after a period not less than the following minimum periods has elapsed from the effective date of the decision ordering that disciplinary action, or if the order of the board or any portion of it is stayed by the board itself or by the superior court, from the date the disciplinary action is actually implemented in its entirety, or for a registered nurse whose initial license application is subject to a disciplinary decision, from the date the initial license was issued:
(d)