This contract incorporates several FAR and HHSAR clauses by reference, with full text available electronically or upon request. These include standard commercial terms, an option to extend services, and a clause on equal employment opportunity investigations. All invoices must be submitted through the Invoice Processing Platform (IPP), match line item descriptions, and specify three-way match payment. Only the contracting officer of record can make changes to the award; any modifications directed by program staff without an executed modification are void.