CA Educ Code Section 22602

(a)

Any person employed to perform creditable service as a substitute teacher who is not already a member in the Defined Benefit Program and who performs less than 100 complete days of creditable service in one school district, community college district, or county superintendent’s office during the school year is excluded from mandatory membership in the Defined Benefit Program.

(b)

This section shall not apply to persons who perform service for employers who provide benefits for their employees under Part 14 (commencing with Section 26000).

(c)

The amendments to this section enacted during the 1995–96 Regular Session shall be deemed to have become operative on July 1, 1996.