34 C.F.R. § 300.224
(a) Requirements for LEAs in general. LEAs that establish joint eligibility under this section must—
(b) Requirements for educational service agencies in general. If an educational service agency is required by State law to carry out programs under Part B of the Act, the joint responsibilities given to LEAs under Part B of the Act—
(c) Additional requirement. Notwithstanding any other provision of §§ 300.223 through 300.224, an educational service agency must provide for the education of children with disabilities in the least restrictive environment, as required by § 300.112.
(Approved by the Office of Management and Budget under control number 1820-0600)
(Authority: 20 U.S.C. 1413(e)(3) and (4))