Definition · Plain-language
NSF grant
An NSF grant is research and education funding awarded by the National Science Foundation, the US agency supporting non-medical science and engineering, decided through external merit review.
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The two merit-review criteria
Every NSF proposal is assessed on two criteria. Intellectual Merit concerns the potential to advance knowledge within and across fields — the quality, creativity and feasibility of the proposed work. Broader Impacts concerns the potential to benefit society and contribute to desired societal outcomes, such as broadening participation, education and infrastructure. Both criteria carry weight, and proposers must address each explicitly; reviewers and panels score against both.
How NSF review works
NSF typically uses a combination of ad hoc external reviews and review panels of experts to evaluate proposals. A programme officer synthesises the reviews, considers the portfolio balance and budget, and makes a funding recommendation that is checked by a division director. Unlike NIH, NSF spans the non-biomedical sciences — physics, computer science, geosciences, social sciences, engineering and education — and structures its directorates accordingly.
Policies and the PAPPG
NSF’s rules for preparing and submitting proposals are set out in the Proposal & Award Policies & Procedures Guide (PAPPG), which defines required sections, formatting, biographical sketch requirements and compliance terms. Proposals are submitted through Research.gov or Grants.gov, and awardees manage post-award reporting through NSF’s systems. The PAPPG is the authoritative reference for what a compliant NSF proposal must contain.
Key facts
At a glance
- Definition: research/education funding from the NSF
- Funder: National Science Foundation (US)
- Scope: non-medical science, engineering, education
- Criteria: Intellectual Merit + Broader Impacts
- Review: external peer review and panels
- Rulebook: Proposal & Award Policies & Procedures Guide (PAPPG)
Common misconceptions
What people often get wrong
Often heard: NSF funds medical and clinical research like NIH.
Actually: NSF supports non-medical science, engineering, mathematics and education; biomedical and clinical research is the remit of the NIH and other agencies.
Often heard: Broader Impacts is optional or secondary.
Actually: Broader Impacts is a statutory merit-review criterion weighed alongside Intellectual Merit; proposals that neglect it can be declined regardless of scientific quality.
Often heard: A panel makes the final funding decision.
Actually: Panels and reviewers advise, but an NSF programme officer makes the funding recommendation within portfolio and budget constraints, subject to division-level concurrence.
Going deeper
