Carriers' contracts with contractors who provide services to passengers, including carriers' agreements of appointment with travel agents (excluding travel agents who are not U.S. citizens who provide services to air carriers outside the United States, its territories and commonwealths), shall include a clause assuring:

(a) Nondiscrimination on the basis of disability, consistent with this part, by such contractors in activities performed on behalf of the carriers; and

(b) That contractor employers will comply with directives issued by carrier complaints resolution officials (CROs) under § 382.67.