28 CFR Part 35 Nondiscrimination on the Basis of Disability in State and Local Government Services (1991 ADA Title II Regulations)

(3) A public entity may not, directly or through contractual or other arrangements, utilize criteria or methods of administration:

(i) That have the effect of subjecting qualified individuals with disabilities to discrimination on the basis of disability;

(ii) That have the purpose or effect of defeating or substantially impairing accomplishment of the objectives of the public entity's program with respect to individuals with disabilities; or

(iii) That perpetuate the discrimination of another public entity if both public entities are subject to common administrative control or are agencies of the same State.