Open · PD-18-7970 · CFDA 47.049 · Discretionary

Combinatorics

Federal grant opportunity posted by U.S. National Science Foundation, cataloged on Grants.gov.

Varies
Award range
Open
Status
54d
Days left
-
Expected awards

The verdict

Combinatorics is an open discretionary opportunity from U.S. National Science Foundation, offering Varies by applicant. Applications close in 54 days.

Varies
award range
Open
54 days left
47.049
CFDA program

Opportunity snapshot. This Grants.gov announcement - Combinatorics - is cataloged under number PD-18-7970 and tied to CFDA assistance listing 47.049, posted by U.S. National Science Foundation. Grants.gov currently shows the opportunity as open, first posted on March 29, 2018 and last updated on October 9, 2025. The funding category is Discretionary, delivered as a grant.

Award economics. The award range on file is Varies by applicant. Cost sharing is not required, so applicants do not need to commit matching funds to be competitive on this opportunity. Federal award ranges are often upper bounds; actual allocations reflect program appropriations, the strength of the applicant pool, and the evaluation committee's scoring.

Deadline and action path. Applications close on September 22, 2026 - roughly 54 days from today. Every Grants.gov submission requires an active SAM.gov registration and a Unique Entity ID. Review the Eligibility section below carefully, federal eligibility categories (nonprofit, state or local government, tribal, individual, educational institution, small business) have distinct registration and reporting requirements. Pre-application outreach to the listed agency contact is permitted and often welcomed, it helps clarify scope and scoring priorities. Before acting on the deadline or award figures above, verify them directly on the official Grants.gov listing, amendments can change dates and amounts after this page was last refreshed.

Award Range

Varies by applicant

Close Date

September 22, 2026

Posted

March 29, 2018

Instrument

Grant

Description

The Combinatorics program supports research on discrete structures and includes algebraic, enumerative, existential, extremal, geometric, and probabilistic combinatorics, including graph theory. Conferences Principal Investigators should carefully read the program solicitation "Conferences and Workshops in the Mathematical Sciences" (link below) to obtain important information regarding the substance of proposals for conferences, workshops, summer/winter schools, and similar activities. Conference proposals must be submitted at least six months in advance of the conference, and in the same fiscal year (which begins October 1) if possible.

Eligibility

Grants.gov lists this opportunity under eligibility category code 99. These codes correspond to applicant types (state/local government, tribal organization, nonprofit, educational institution, individual, small business, etc.) defined in Grants.gov's own eligibility reference. See the current Grants.gov eligibility categories or check the official listing below for this opportunity's exact eligibility statement.

Official Listing on Grants.gov

View full details, application forms, and submission instructions.

View on Grants.gov

Parent Grant Program

CFDA 47.049

Mathematical and Physical Sciences

National Science Foundation

View program →

Agency Contact

NSF grants.gov support grantsgovsupport@nsf.gov

Key Dates

Posted March 29, 2018
Close Date September 22, 2026
Archive Date October 26, 2028
Last Updated October 9, 2025

Frequently Asked Questions

What is this grant opportunity?
This is a federal funding opportunity titled "Combinatorics", offered by U.S. National Science Foundation. It is associated with CFDA program 47.049. The Combinatorics program supports research on discrete structures and includes algebraic, enumerative, existential, extremal, geometric, and probabilistic combinatorics, including graph theory. Confe...
Is this opportunity still open?
Yes, this opportunity is currently open for applications. The closing date is September 22, 2026.
How much funding is available?
The award range for this opportunity is Varies by applicant.
How do I apply?
Applications for federal grant opportunities are typically submitted through Grants.gov. Visit the official listing at grants.gov for application instructions, required documents, and submission deadlines.

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Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from the SAM.gov Assistance Listings and Grants.gov. See our methodology for details. Retrieved and formatted by PlainGrants