Americans with Disabilities Act (ADA) of 1990 (with amendments issued through 2008)

(c) Specific wilderness access

(1) In general

Congress reaffirms that nothing in the Wilderness Act (16 U.S.C. 1131 et seq.) is to be construed as prohibiting the use of a wheelchair in a wilderness area by an individual whose disability requires use of a wheelchair, and consistent with the Wilderness Act no agency is required to provide any form of special treatment or accommodation, or to construct any facilities or modify any conditions of lands within a wilderness area in order to facilitate such use.

(2) "Wheelchair" defined

For purposes of paragraph (1), the term "wheelchair" means a device designed solely for use by a mobility-impaired person for locomotion, that is suitable for use in an indoor pedestrian area.