Invoice Instructions and Terms and Conditions

As a valued partner, we want to ensure you are prepared for the changes you may experience as we transition to our new system. These key updates include:

• New Invoice Requirements Purchase Order
• (PO)/Agreement Numbering Formats
• New Charge Codes and Formats
• Electronic Signature Platform Update
• Temporary Payment Delays During Cutover

Details of the upcoming transition are available here. If you have any questions in the meantime, please contact your RTI Procurement or Subcontract Specialist listed on your most recent Purchase Order or Subcontract.

Invoice Instructions

For information about invoicing RTI and receiving payment on purchase orders, subcontracts, subawards, subgrants, or consultant agreements, review our Supplier Invoice/Payment Instructions.

Master Service Agreement

RTI takes a Master Service Agreement (MSA) approach where appropriate. Terms and conditions of the Subcontract MSA largely mirror those currently included in our standalone subcontracts.

Our Commercial MSA is issued in instances where we expect repeat engagement with suppliers and are purchasing commercial items or services not linked to federal projects.

Purchase Orders

Purchase Orders are subject to all the terms and conditions set forth in an agreement, as listed. 

• RTI Purchase Order Terms and Conditions (v1.21); (effective for all purchase orders issues on or after 4/15/2025 (English)
• RTI Purchase Order Terms and Conditions (v1.20); (effective for all purchase orders issues on or after 3/25/2024) (English) (French) (Spanish)
• RTI Purchase Order Terms and Conditions (v1.19); (effective for all purchase orders issues on or after 1/12/2024) (English)
• RTI Purchase Order Terms & Conditions (v1.18); (effective for all purchase orders issued on or after 9/01/2022) (English)
• RTI Purchase Order Terms & Conditions (v1.17); (effective for all purchase orders issued on or after 06/10/2021) (English)
• RTI Purchase Order Terms & Conditions (v1.16); (effective for all purchase orders issued on or after 9/1/2020) (English)
• RTI Purchase Order Terms & Conditions (v1.15); (effective for all purchase orders issued on or after 12/3/2018) (English)
• RTI Purchase Order Terms & Conditions (v1.14); (effective for all purchase orders issued between 2/11/2016 and 12/3/2018) (English)
• RTI Purchase Order Terms & Conditions (v1.13); (effective for all purchase orders issued between 12/17/2015 and 2/11/2016) (English)

Subcontracts

In the event it is necessary to issue a standalone subcontract, these Terms and Conditions shall be utilized. The Terms and Conditions are written for inclusion into a subcontract; however, they also apply to Subawards issued under Federal Grants and Cooperative Agreements. In such cases, "Subgrantee" or "Subrecipient" should be substituted for "Subcontractor," "Subgrant" or "SubAgreement" should be substituted for "Subcontract," etc.

These Terms represent the standard contractual provisions normally found in subcontracts issued by RTI, whether federally or commercially funded. Any particular subcontract may contain different and/or additional provisions appropriate to the particular type and size of subcontract being issued, and may include additional clauses required by RTI's Federal or commercial Client.

These Terms are subject to changes based on requirements in the prime contract under which the subcontract will be issued.

Consulting Services Contracts

When engaging an individual researcher, the Terms and Conditions are written for inclusion into a Consulting Services Contract.

• RTI Standard Consulting Services Contract Terms & Conditions

Federal Prime Contract Flow-Down Terms and Conditions

It is RTI’s policy to ensure that all required and applicable prime contract flow-down terms and conditions are incorporated into procurements that support RTI’s Federal prime contracts.

When utilizing the terms and conditions set forth below, RTI shall notify Vendor/Consultant/Subcontractor regarding which set of terms and conditions are applicable to an individual Purchase Order, Consultant Contract or Subcontract.
The terms and conditions set forth below are not inclusive of the required flow-down terms and conditions for every procurement action. Thus, additional terms and conditions may be applicable to an individual Purchase Order, Consultant Contract or Subcontract as specified therein.

• Federal Acquisition Regulation (FAR) Clauses v4.0 – effective for agreements issued on or after 3/2/2015
• FAR Clauses v1.0 – effective for agreements issued between 10/1/2014 and 3/1/2015
• FAR Clauses for Commercial Items v2.0 – effective for agreements issued on or after 3/2/2015
• FAR Clauses for Commercial Items v1.0 – effective for applicable agreements issued between 10/1/2014 and 3/1/2015
• Defense Federal Acquisition Regulation Supplement (DFARS) Clauses v1.0 – effective for agreements issued on or after 10/1/2014
• Federal Acquisition Regulation (FAR) Clauses v5.0 – effective for all agreements issued on or after 4/21/2025