Cal. Educ. Code § 52572

The governing board of any school district or the county superintendent of schools authorized by this article to establish special classes for adults designed to serve the educational needs of adults with disabilities may contract for the providing of those classes by any adjacent high school district or unified school district, subject to the approval of the Superintendent. For purposes of apportionments, the average daily attendance in classes conducted pursuant to the contract shall accrue to and be reported by the district in which the student resides. Any contract entered into pursuant to this section shall be for a term of not to exceed one year but may be renewed or revised and renewed annually.