Section 24218 Of Chapter 27. Service Retirement From California Education Code >> Division 1. >> Title 1. >> Part 13. >> Chapter 27.

. For the purpose of calculating retirement allowances, credit for service performed between June 30, 1956, and July 1, 1968, on a part-time basis in each school year shall be based on the ratio that service performed bears to the minimum full-time service required for credit for a year of service.