Cal. Code Regs. tit. 5, § 15101 – Application and Exemptions.

(a) A school that is the only school maintained by a district and that has less than 101 units of average daily attendance.
(b) A “necessary small school” with less than 101 units of average daily attendance as provided in Education Code Section 41702.
(c) Grades 7 and 8 of a junior high school established and organized as a secondary school by a high school district or unified school district pursuant to Article 5 of Chapter 1 of Part 1 of the Education Code.

This chapter applies to regular day classes in kindergarten and grades 1 through 8 maintained by a school district, except classes in:

1. Amendment filed 9-23-77; effective thirtieth day thereafter (Register 77, No. 39).