2 C.F.R. § 175.105
(a) Federal agencies are required to include in each Federal grant or cooperative agreement a condition that authorizes the Federal agency to terminate the award or take any remedial actions authorized by 22 U.S.C. 7104b(c), without penalty, if a private entity receiving funds under the award as a recipient or subrecipient engages in:
(4) Acts that directly support or advance trafficking in persons, including the following acts:
(ii) Failing to provide return transportation or pay for return transportation costs to an employee from a country outside the United States to the country from which the employee was recruited upon the end of employment if requested by the employee, unless:
(b) Compliance plan and certification requirement:
(1) Certification. Prior to receiving a grant or cooperative agreement, if the estimated value of services required to be performed under the grant or cooperative agreement outside the United States exceeds $500,000, a recipient must certify that:
(5) Minimum requirements of the compliance plan. The compliance plan must include, at a minimum, the following:
(c) Notification to Inspectors General and cooperation with government. The head of a Federal agency making or awarding a grant or cooperative agreement must require that the recipient of the grant or cooperative agreement: