Section 31880 Of Article 17. Integration With Federal Old Age, Survivors, And Disability Insurance From California Government Code >> Division 4. >> Title 3. >> Part 3. >> Chapter 3. >> Article 17.

. Each county having a population in excess of five million, which has not already integrated its retirement system with the federal system, shall effect such integration pursuant to this article to be operative as of a date specified by the board of supervisors to be no later than July 1, 1964.