Cal. PCC § 10832

(a) No retired, dismissed, separated, or formerly employed person of the California State University employed with the California State University or otherwise appointed to serve in the California State University may enter into a contract in which he or she engaged in any of the negotiations, transactions, planning, arrangements, or any part of the decisionmaking process relevant to the contract while employed in any capacity by any California State University department. The prohibition of this subdivision shall apply to a person only during the two-year period beginning on the date the person left California State University employment.

(b) For a period of 12 months following the date of his or her retirement, dismissal, or separation from the California State University, no person employed in the California State University or otherwise appointed to serve in the California State University may enter into a contract with any California State University department, if he or she was employed by that department in a policymaking position in the same general subject area as the proposed contract within the 12-month period prior to his or her retirement, dismissal, or separation. The prohibition of this subdivision shall not apply to a contract requiring the person’s services as an expert witness in a civil case or to a contract for the continuation of an attorney’s services on a matter he or she was involved with prior to leaving the California State University.

(c) This section does not prohibit the rehire or reappointment of California State University employees after retirement, consistent with California State University administrative policies, nor does it apply to inventors and authors of intellectual property licensed under technology transfer agreements.