- Track 1: Track 1 MRI proposals are those that request funds from NSF greater than $100,000[1] and less than $1,400,000.
- Track 2: Track 2 MRI proposals are those that request funds from NSF greater than or equal to $1,400,000 up to and including $4,000,000.
- Track 3: Track 3 MRI proposals are those that request funds from NSF greater than or equal to $100,000[1] and less than or equal to $4,000,000 that include the purchase, installation, operation, and maintenance of equipment and instrumentation to conserve or reduce the consumption of helium. Institutions may submit no more than one Track 3 proposal. Submission of a Track 3 proposal does not impact limits that apply for Track 1 and Track 2 proposals.
Major Research Instrumentation Program: (MRI)
U.S. National Science Foundation · Opportunity number 23-519
Details summarized from the official notice as of Sep 19, 2026. Always confirm eligibility, deadlines and requirements in the official notice before applying.
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Key facts
| Opportunity number | 23-519 |
|---|---|
| Agency | U.S. National Science Foundation |
| Assistance listing (ALN, formerly CFDA) | 47.075, 47.070, 47.076, 47.084, 47.041, 47.049, 47.050, 47.074 |
| Posted | Nov 22, 2022 |
| Deadline | Not listed |
| Award ceiling | $4,000,000 |
| Award floor | $100,000 |
| Estimated total program funding | $75,000,000 |
| Cost sharing or matching required | No |
| Funding type | Grant |
| Category | Science technology and other research and development |
| Last updated here | Sep 19, 2026 |
Summary from the notice
Who can apply
The official notice lists these applicant types as eligible:
- Others named in the notice (see the eligibility text)
Not listed as eligible
- Small businesses
- Nonprofits
- Colleges and universities
- State governments
- Local governments
- Tribal governments and organizations
- Larger for-profit companies
- Individuals
Unless the eligibility text in the notice names you, this opportunity is probably not for you.
Eligibility details from the notice
*Who May Submit Proposals: Proposals may only be submitted by the following: - Organizations thatmay apply for the MRI program: Submission Eligibility Proposals may only be submitted by organizations located in the United States, its territories or possessions, as follows. (Campuses or organizations that plan to submit a proposal through the sponsored projects office (SPO) of other campuses or organizations should contact NSF to discuss eligibility as early as possible and at least six weeks before submitting such a proposal.) Institutions of higher education (Ph.D.-granting and non-Ph.D.-granting), acting on behalf of their faculty members, that are accredited in and have their main campus in the United States, its territories or possessions. Distinct academic campuses (e.g., that award their own degrees, have independent administrative structures, admissions policies, alumni associations, etc.) within multi-campus systems qualify as separate submission-eligible institutions. Not-for-profit, non-degree-granting domestic U.S. organizations, acting on behalf of their employees, for example (but not limited to) independent museums and science centers, observatories, research laboratories and similar organizations that are directly associated with the Nation's research activities. These organizations must have an independent, permanent administrative organization (e.g., a sponsored projects office) located in the United States, its territories or possessions, and have 50...
Registrations you will likely need
Most applications submitted through Grants.gov need the following. Registration can take several weeks, so start early. The notice lists the exact requirements.
- SAM.gov registration for your organization, which also gives you a Unique Entity ID (UEI). Registration is free.
- A Login.gov account, which Grants.gov uses for sign-in.
- A Grants.gov applicant registration linked to your organization's UEI.
Past awards for this program
Totals for assistance listing 47.075, 47.070, 47.076, 47.084, 47.041, 47.049, 47.050, 47.074 from public USASpending.gov data, as of Sep 23, 2026. Past awards do not predict future funding.
| Year | Listing | Awards | Total | Average |
|---|---|---|---|---|
| 2026 | 47.075 | 1 | $13,900,000 | $13,900,000 |
| 2026 | 47.041 | 12 | $310,155,075 | $25,846,256 |
| 2026 | 47.084 | 8 | $177,731,954 | $22,216,494 |
| 2026 | 47.076 | 14 | $335,416,836 | $23,958,345 |
| 2026 | 47.074 | 7 | $187,602,317 | $26,800,331 |
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