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

§1630.13 Prohibited medical examinations and inquiries..

(a) Pre-employment examination or inquiry. Except as permitted by §1630.14, it is unlawful for a covered entity to conduct a medical examination of an applicant or to make inquiries as to whether an applicant is an individual with a disability or as to the nature or severity of such disability.

(b) Examination or inquiry of employees. Except as permitted by §1630.14, it is unlawful for a covered entity to require a medical examination of an employee or to make inquiries as to whether an employee is an individual with a disability or as to the nature or severity of such disability.