New HHSAR IPP Clause
All existing awards will be modified to include a new Health and Human Services Acquisition Regulation (HHSAR) clause HHSAR 352.232-71 Electronic Submission of Payment Requests (February 2, 2022) along with your company/organization’s transition date to IPP. All existing NIH Vendors should use the OFM Electronic Invoice Submission instructions until your company/organization has been notified of its transition to IPP. All new awards to new Vendors will contain HHSAR clause 352.232-71 and use IPP upon award.
How to Find Your IPP Wave Number
A list of NIH’s Vendors and associated IPP Wave numbers is located here. This information is being provided so that you can identify your IPP Wave and plan on your end for the transition to IPP.
IPP Wave Numbers and Transition Dates
Using your Vendor’s IPP Wave Number stated on the Excel spreadsheet, below are the IPP transition dates by Waves:
| IPP Wave | IPP Transition Date (Date that Vendor Starts Using IPP) |
| 1A | March 21, 2022 |
| 1B | April 25, 2022 |
| 2 | June 21, 2022 |
| 3 | October 11, 2022 |
| 4 | January 9, 2023 |
| 5 | March 13, 2023 |
IPP Wave Notification Letters
IPP Wave Notification Letters will be sent to the Vendor’s SAM.gov Point of Contact (POC) and IPP POC email addresses. It is important that SAM.gov records are active (not expired) and reflect the current names and email addresses for all POC’s.
Wave 1 – Enrolled in IPP
Wave 1 – Not Enrolled in IPP
Wave 2 – Enrolled in IPP (Attachment 1 - List of IPP Wave 2 Vendors)
