Code of Federal Regulations Title 5. Administrative Personnel § 5.1315.5 Accelerated payment methods

(a) A single invoice under $2,500. Payments may be made as soon as the contract, proper invoice , receipt and acceptance documents are matched except where statutory authority prescribes otherwise and except where otherwise contractually stipulated (e.g., governmentwide commercial purchase card.) Vendors shall be entitled to interest penalties if invoice payments are made after the payment due date.

(b) Small business (as defined in FAR 19.001 (48 CFR 19.001)). Agencies may pay a small business as quickly as possible, when all proper documentation, including acceptance, is received in the payment office and before the payment due date. Such payments are not subject to payment restrictions stated elsewhere in this part. Vendors shall be entitled to interest penalties if invoice payments are made after the payment due date.

(c) Emergency payments. Payments related to emergencies and disasters (as defined in the Robert T. Stafford Disaster Relief Act and Emergency Assistance, Pub.L. 93–288, as amended (42 U.S.C. 5121 et seq.);  payments related to the release or threatened release of hazardous substances (as defined in the Comprehensive Environmental Response Compensation and Liability Act of 1980, Pub.L. 96–510, 42 U.S.C. 9606);  and payments made under a military contingency (as defined in 10 U.S.C. 101(a)(13)) may be made as soon as the contract, proper invoice, receipt and acceptance documents or any other agreement are matched. Vendors shall be entitled to interest penalties if invoice payments are made after the payment due date.

(d) Interim payments under cost-reimbursement contracts for services. For interim payments under cost-reimbursement service contracts, agency heads may make payments earlier than seven days prior to the payment due date in accordance with agency regulations or policies.