Section 3.201 of the Federal Acquisition Regulations requires the Gratuities Clause in all federal government contracts:
(a) The right of the Contractor to proceed may be terminated by written notice if, after notice and hearing, the agency head or a designee determines that the Contractor, its agent, or another representative—
(1) Offered or gave a gratuity (e.g., an entertainment or gift) to an officer, official, or employee of the Government; and
(2) Intended, by the gratuity, to obtain a contract or favorable treatment under a contract.
(b) The facts supporting this determination may be reviewed by any court having lawful jurisdiction.
(c) If this contract is terminated under paragraph (a) of this clause, the Government is entitled—
(1) To pursue the same remedies as in a breach of the contract; and
(2) In addition to any other damages provided by law, to exemplary damages of not less than 3 nor more than 10 times the cost incurred by the Contractor in giving gratuities to the person concerned, as determined by the agency head or a designee. (This paragraph (c)(2) is applicable only if this contract uses money appropriated to the Department of Defense.)
(d) The rights and remedies of the Government provided in this clause shall not be exclusive and are in addition to any other rights and remedies provided by law or under this contract.
The Federal Acquisition Regulations can also be found in the 48 CFR Chapter 1.