Section 20281 Of Article 1. Compulsory Membership From California Government Code >> Division 5. >> Title 2. >> Part 3. >> Chapter 3. >> Article 1.

. All members of the retirement system immediately prior to the time this part becomes operative continue to be members of this system. An employee of a contracting agency on the effective date of its contract with the board becomes a member immediately. Every other employee becomes a member upon his or her entry into employment.