A member shall receive credit for employment in public service only for such service as he is not entitled to receive a pension or retirement allowance from such public agency. The service for which he elects to contribute and the fact that no pension or retirement allowance will accrue to such member by virtue of his employment in such public agency must be certified to by an officer of the public agency where he rendered such public service or must be established to the satisfaction of the board.
Notwithstanding any other provision of law, a safety member who receives credit for prior employment in public service, the principal duties of which consisted of active law enforcement or active fire suppression, or active service in the armed services of the United States during time of war or national emergency, shall have his pension or retirement allowance for such service calculated on the same basis as the calculation of the retirement allowance such member would receive as a safety member under Section 31664.
A safety member who entered the service as a peace officer prior to the establishment of the safety membership provisions in his county shall be considered a safety member from his initial hiring date, for the purposes of this section, notwithstanding any other provision of law.
Source:
Section 31641.4, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=31641.4..