(a) The holder of a valid California teaching or services credential for which the requirements are equal to or greater than those listed in Title 5 Section 80025(a)(1) and (2) for an Emergency 30-Day Substitute Teaching Permit is authorized to serve as a substitute in any classroom; preschool, kindergarten and grades 1-12, inclusive; or in classes organized primarily for adults. However, the holder shall not serve as a substitute for more than 30 days for any one teacher during the school year. Holders of teaching or services credentials issued prior to February 1, 1983 will not be held to the requirement in Education Code Section 44252(b) if the requirements for the credential included a bachelor's degree and a professional preparation program.

(b) The holder of a permit or credential issued according to the provisions of Title 5 Sections 80021, 80021.2, 80022, 80023.2, 80025.1 or 80071.4(c) may, in addition to the authorization of the permit, serve as a substitute in any classroom; preschool, kindergarten and grades 1-12, inclusive; or in classes organized primarily for adults during the valid period of the permit in any district within the county listed on the document. However, the holder shall not serve as a substitute for more than 30 days for any one general education teacher or classroom, or more than 20 days for any one special education teacher or classroom during the school year.

(c) The provisions of this section do not apply to teachers who hold documents issued under the provisions of Education Code Sections 44321 or 44325.