(a) This part applies to each recipient of Federal financial assistance from the Department and to the recipient's programs or activities that involve individuals with disabilities in the United States. This part does not apply to the recipient's programs or activities outside the United States that do not involve individuals with disabilities in the United States.

(b) The requirements of this part do not apply to the ultimate beneficiaries of any program or activity operated by a recipient of Federal financial assistance.

(c) Any provision of this part held to be invalid or unenforceable by its terms, or as applied to any person or circumstance, shall be construed so as to continue to give maximum effect to the provision permitted by law, unless such holding shall be one of utter invalidity or unenforceability, in which event the provision shall be severable from this part and shall not affect the remainder thereof or the application of the provision to other persons not similarly situated or to other dissimilar circumstances.