California Code, Education Code - EDC § 47646

(a) A charter school that is deemed to be a public school of the local educational agency that granted the charter for purposes of special education shall participate in state and federal funding for special education in the same manner as any other public school of that local educational agency.  A child with disabilities attending the charter school shall receive special education instruction or designated instruction and services, or both, in the same manner as a child with disabilities who attends another public school of that local educational agency.  The agency that granted the charter shall ensure that all children with disabilities enrolled in the charter school receive special education and designated instruction and services in a manner that is consistent with their individualized education program and is in compliance with the federal Individuals with Disabilities Education Act (20 U.S.C. Sec. 1400 et seq.) and implementing regulations, including Section 300.209 of Title 34 of the Code of Federal Regulations.

(b) In administering the local operation of special education pursuant to the local plan established pursuant to Chapter 3 (commencing with Section 56205) of Part 30, in which the local educational agency that granted the charter participates, the local educational agency that granted the charter shall ensure that each charter school that is deemed a public school for purposes of special education receives an equitable share of special education funding and services consisting of either, or both, of the following:

(c) In administering the local operation of special education pursuant to the local plan established pursuant to Chapter 3 (commencing with Section 56205) of Part 30, in which the local educational agency that granted the charter participates, the local educational agency that granted the charter shall ensure that each charter school that is deemed a public school for purposes of special education also contributes an equitable share of its charter school block grant funding to support districtwide special education instruction and services, including, but not limited to, special education instruction and services for pupils with disabilities enrolled in the charter school.