Nothing in this subpart shall be construed to reduce or expand—

(1) the obligation of a State or local educational agency to provide a free appropriate public education, as defined in section 1401 of this title; or

(2) eligibility requirements under any Federal, State, or local disability law, including the Americans with Disabilities Act of 1990 (42 U.S.C. 12101 et seq.), the Rehabilitation Act of 1973 (29 U.S.C. 701 et seq.), or the Developmental Disabilities Assistance and Bill of Rights Act of 2000 (42 U.S.C. 15001 et seq.).