29 CFR Part 1630, Regulations to Implement the Equal Employment Provisions of the ADA (Title I Regulations with amendments issued through May 2016)

(a) In general. It is unlawful for a covered entity to use qualification standards, employment tests or other selection criteria that screen out or tend to screen out an individual with a disability or a class of individuals with disabilities, on the basis of disability, unless the standard, test, or other selection criteria, as used by the covered entity, is shown to be job related for the position in question and is consistent with business necessity.