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

(e) Employer—

(1) In general. The term employer means a person engaged in an industry affecting commerce who has 15 or more employees for each working day in each of 20 or more calendar weeks in the current or preceding calendar year, and any agent of such person, except that, from July 26, 1992 through July 25, 1994, an employer means a person engaged in an industry affecting commerce who has 25 or more employees for each working day in each of 20 or more calendar weeks in the current or preceding year and any agent of such person.

(2) Exceptions. The term employer does not include—

(i) The United States, a corporation wholly owned by the government of the United States, or an Indian tribe; or

(ii) A bona fide private membership club (other than a labor organization) that is exempt from taxation under section 501(c) of the Internal Revenue Code of 1986.