Attachment 3 Invoicing Instructions.pdf

This document is an Invoice and Payment Provisions attachment detailing comprehensive requirements for invoice submission and payment processing for federal contracts. The document outlines 12 specific invoice requirements, including mandatory information such as vendor/contractor details, unique invoice numbers, NBS document formats, entity identifiers, and precise description and quantity matching for supplies or services delivered. Key requirements include submitting invoices to the Department of Treasury's Invoice Processing Platform (IPP), providing a three-way match for payments, and ensuring invoice details exactly correspond with the original contract or order.

The attachment also specifies invoice payment terms, including that payments are due 30 days after receipt of a proper invoice or government acceptance of delivered supplies/services. It establishes interest penalty provisions for late payments and mandates accelerated payments to small business subcontractors within 15 days of receipt. Additionally, the document requires electronic submission of payment requests through the IPP system, with provisions for alternative submission procedures if authorized by the Contracting Officer. The document is part of a federal contract opportunity related to Personal Protective Equipment for the National Institutes of Health, updated on March 21, 2023.