Cal. Education Code - EDC § 60400. Section 60400.
The governing board of each school district maintaining one or more high schools shall adopt instructional materials for use in the high schools under its control. Only instruction materials of those publishers who comply with the requirements of Article 3 (commencing with Section 60040) and Article 4 (commencing with Section 60060) of Chapter 1 of this part and of Section 60226 may be adopted by the district board.