Section 31649 Of Article 7. Service From California Government Code >> Division 4. >> Title 3. >> Part 3. >> Chapter 3. >> Article 7.

. (a) Any member who resigns to enter and does enter the Armed Forces of the United States on a voluntary or involuntary basis, and within 90 days after the termination of that service under honorable conditions, reenters county service, or
  (b) Any member who obtains a leave of absence to enter and does enter the Armed Forces of the United States on a voluntary or involuntary basis, and within one year after the termination under honorable conditions of leave of absence reenters county service, if he or she has not contributed to the retirement fund the total percentage of his or her compensation earnable due pursuant to Section 31461 or pensionable compensation as defined in Section 7522.34, whichever is applicable, due under this chapter for the entire period during which he or she was out of county service and in military service, may, not more than 90 days after his or her reentrance into county service, file with the board his or her election that no further contributions be deducted from his or her compensation except contributions due because of current service.
  (c) A member who reenters county service under either (a) or (b) above may be allowed up to five years credit for vesting in the system.