Section 32235.5 Of Article 2. Retirement System From California Government Code >> Division 4. >> Title 3. >> Part 3. >> Chapter 5. >> Article 2.

. Any employee of the county or any special district thereof who is a member of another retirement system, and who through transfer or appointment becomes eligible for membership in this chapter, may elect to be excluded from this system. Any employee who so elects within thirty days after transfer or permanent appointment, shall not thereafter be included in or participate in this chapter.