Important information about NSF’s implementation of the revised 2 CFR

NSF Financial Assistance awards (grants and cooperative agreements) made on or after October 1, 2024, will be subject to the applicable set of award conditions, dated October 1, 2024, available on the NSF website. These terms and conditions are consistent with the revised guidance specified in the OMB Guidance for Federal Financial Assistance published in the Federal Register on April 22, 2024.

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.

HEGS Program invites supplemental funding requests to support undergraduate and graduate students


Two dear colleague letters express the interest of the Human-Environment and Geographical Sciences (HEGS) program in receiving requests for supplemental funding to support undergraduate and graduate students. The purpose of these supplements is to provide students with opportunities to gain meaningful research experience as collaborators on funded projects.

PIs and co-PIs on current HEGS awards are eligible to request Research Experience for Graduates (REG) or Research Experience for Undergraduates (REU) supplements to support students at their home institutions or at other institutions.

Dear Colleague Letter: Human-Environment and Geographical Sciences (HEGS) Research Experience for Graduates (REG) and Research Experience for Undergraduates (REU) Supplements to support students from Minority Serving Institutions and Community Colleges (NSF 23-069)

  • Invites requests of up to $7,000 per student to support their participation in the activities of the funded award.
  • Students should be students at Minority Serving Institutions or community colleges and do not need to be enrolled at the PI or co-PI’s institution.
  • Submissions are requested by April 14, 2023, but may be submitted at other times with prior approval of a HEGS program officer.

Read the dear colleague letter for submission instructions and other details.

Dear Colleague Letter: Human-Environment & Geographical Sciences (HEGS) Research Experience for Graduates (REG) and Research Experience for Undergraduates (REU) Supplements (NSF 22-048)

  • Invites requests of up to $6,000 per student.
  • May support participation in the activities of the funded award or independent research by the student under the mentorship of the PI or co-PI.
  • Students do not need to be enrolled at the PI or co-PI’s institution.
  • Submissions are requested by March 23, 2023, but may be submitted at other times with prior approval of a HEGS program officer.

Read the dear colleague letter for submission instructions and other details.

Please contact a HEGS program officer or email HEGS-info@nsf.gov with any questions.