“The ADA provides for equality of opportunity, but does not guarantee equality of results. The foundation of many of the specific requirements in the Department’s regulations is the principle that individuals with disabilities must be provided an equally effective opportunity to participate in or benefit from a public entity’s aids, benefits, and services.” --DOJ Title II Technical Assistance Manual

28 CFR Part 35
NONDISCRIMINATION ON THE BASIS OF DISABILITY IN STATE AND LOCAL
GOVERNMENT SERVICES

Subpart A-General

§35.101 Purpose
The purpose of this part is to effectuate subtitle A of title II of the Americans with Disabilities Act of 1990 (42 USC 12131), which prohibits discrimination on the basis of disability by public entities.[...]

§35.102 Application
(a) [T]his part applies to all services, programs, and activities provided or made available by public entities.[...]

35.104§ Definitions [...]
Facility means all or any portion of buildings, structures, sites, complexes, equipment, rolling stock or other conveyances, roads, walks, passageways, parking lots, or other real or personal property, including the site where the building, property, structures, or equipment is located.[...]
Public entity means --
(1) Any State or local government;
(2) Any department, agency, special purpose district, or other instrumentality of a State or States or local government; and
(3) The National Railroad Passenger Corporation, and any commuter authority (as defined in section 103(8) of the Rail Passenger Service Act).