Important information for proposers

All proposals must be submitted in accordance with the requirements specified in this funding opportunity and in the NSF Proposal & Award Policies & Procedures Guide (PAPPG) that is in effect for the relevant due date to which the proposal is being submitted. It is the responsibility of the proposer to ensure that the proposal meets these requirements. Submitting a proposal prior to a specified deadline does not negate this requirement.

Unique Entity ID Required for Proposal Submission

On April 4, 2022, the unique entity identifier used across the federal government changed from the DUNS Number to the Unique Entity ID (UEI), generated by An active SAM registration is required to submit a proposal to NSF. If the SAM registration is not complete before the proposal due date, the proposer will have to wait and submit their proposal for the next solicitation due date after SAM registration is complete. Organizations are experiencing delayed registrations, validations and UEI issuance. Please start processes early to allow for additional time. Visit for the latest status and additional guidance.