California Code, Education Code - EDC § 87423

Acceptance of any exchange position by an employee of a community college district in the state shall not affect his or her right to the permanent classification to which he or she is entitled, at the time of the acceptance, or any of his or her rights under the state teachers' retirement salary provisions of this code, or under any local or district retirement plan, or system.  The time served in the exchange position shall be counted as time served in the service of the district in which the employee is employed immediately prior to acceptance of the exchange position in determining his or her status under Section 72400, Part 13 (commencing with Section 22000), Article 5 (commencing with Section 32340) of Chapter 3 of Part 19, this part, under the provisions of this code relating to state retirement salary, and under any local or district retirement plan.