NSF Removed the Materials Research Deadline and Replaced It With a Quota: One Proposal Per Person Per Year
August 26, 2026 · 6 min read
Granted Research Team · Editorial policy
The most important sentence in NSF's new materials research solicitation is not about money or deadlines. It is a limit:
No more than one proposal per fiscal year may list the same individual as either PI or co-PI.
NSF 26-521, MPS Materials Research Programs, released August 17 as part of NSF's $1.5 billion foundational research reset, consolidates eight Division of Materials Research programs into a single document carrying $100 million and an anticipated 200 to 300 awards. It replaces NSF 23-612 and NSF 23-611, and like most of the August 17 batch, it deletes the submission deadline in favor of "Proposals Accepted Anytime."
Deleting a deadline sounds like a loosening. Pair it with a one-per-year cap that spans all eight programs and it is the opposite. A deadline told you when to submit. The cap tells you how many times — once — and now you also have to decide when, with no calendar to decide it for you.
The eight programs are now one pool
The consolidated programs:
- Biomaterials
- Ceramics
- Condensed Matter and Materials Theory
- Condensed Matter Physics
- Electronic and Photonic Materials
- Metals and Metallic Nanostructures
- Polymers
- Solid State and Materials Chemistry
Historically these were separately branded programs with their own program officers, their own panel cultures and, critically for strategy, their own submission windows. An investigator whose work straddled polymers and biomaterials had a real option: submit to one this cycle, the other next, and let two different panels see two different framings of an overlapping research program.
That option is closed. The cap is written across the solicitation, not per program. One appearance, anywhere in the eight, per fiscal year, whether as PI or as co-PI.
The exceptions are narrow and worth memorizing precisely because they are the only relief valves: conference proposals, supplemental funding requests, EAGER, RAPID, and RAISE proposals do not count against the limit — the last three requiring prior program officer approval, as they always have. Nothing in that list helps a regular research proposal.
The co-PI trap
Here is the failure mode that will burn labs this year, and it has nothing to do with your own proposal.
Because the cap counts PI or co-PI equally, agreeing to join a colleague's collaborative proposal as a co-PI consumes your entire annual submission. A senior investigator who is generous with co-PI slots — the collaborative instinct that materials research has spent two decades cultivating, across the theory-experiment divide and across institutions — can spend a fiscal year's eligibility on someone else's project without ever writing a proposal of their own.
Two practical consequences follow.
First, the co-PI decision is now a budget decision, not a collegial one. Before you accept a co-PI line, you are answering the question "is this the one proposal I submit to DMR this year?" That is a conversation to have in September, not in the week the collaborative narrative is being assembled.
Second, senior personnel status is not co-PI status. The cap language names PI and co-PI specifically. Participating as senior personnel, or as a funded subaward participant who is not named co-PI on the cover page, is a materially different position with respect to the quota. Materials teams should be deliberate about role assignment on collaborative proposals — the same intellectual contribution can be structured either way, and only one of them costs someone their annual slot.
This is not an isolated design. NSF's chemistry solicitation this cycle imposed a two-proposal annual cap on senior personnel, a different number counted against a different role definition. Across MPS, the caps are now a patchwork: read the one governing your solicitation and do not assume it matches your neighbor's.
"Anytime" has a window inside it
The solicitation says proposals are accepted anytime, and then quietly tells you when to submit:
If possible, proposals should be submitted between June 15 – April 15 of the following year. Proposals submitted between June 15 and April 15 of the following year may be processed faster than those submitted outside this window due to fiscal year timing.
Translate that. Between April 15 and June 15 — the end of the federal fiscal year's committing window and the start of the next cycle — a proposal will sit. It will still be reviewed. It may be reviewed considerably later, and the award, if it comes, lands in a subsequent fiscal year.
For a program with a one-shot annual cap, that timing detail is not administrative trivia. If you submit your single FY proposal in early May and it drifts, you have spent your one attempt on a submission that will not be decided until well into the following year, and your next eligible submission may arrive before you have a decision on the first. The clean strategy is to submit in the fall or winter — comfortably inside the window, early enough that a decline leaves the next fiscal year's slot usable on a revised version.
What $100 million across 200 to 300 awards actually buys
Take the midpoint: 250 awards against $100 million is roughly $400,000 per award. Whether that figure represents a full multi-year project or an annual increment is not stated in the solicitation, and the distinction matters enormously — a $400,000 three-year grant supports roughly one graduate student and a fraction of a postdoc after indirect costs, in a discipline where a single materials characterization instrument can cost more than the entire award.
Two honest readings are available. If the $100 million is an annual portfolio figure supporting 200 to 300 concurrent awards, the per-award economics resemble the historical DMR core grant. If it is a single competition total, the awards are thin. Investigators building budgets should ask their program officer directly rather than infer, and should size the proposal to the science it can actually complete.
What is unambiguous is the eligibility boundary: institutions of higher education, nonprofit research organizations, and federally recognized Tribal Nations located in the United States. Also unambiguous is what did not fold in. DMREF, MRSEC, the Materials Innovation Platforms, the national user facilities, and CAREER remain separate solicitations. If your project is a center, a data-driven materials design consortium, a user facility, or an early-career award, this is not your document — and those remain the routes to funding at a scale the core programs no longer reach.
Resubmission just got more expensive
The solicitation retains the requirement that a resubmitted declined proposal include a one-page statement describing how it was modified in response to reviewer comments, and adds the enforcement: "Proposals that have not been substantially revised will be returned without review."
Under a deadline regime with multiple annual windows, a lightly-revised resubmission was a reasonable gamble. Under a one-per-year cap, a proposal returned without review does not just fail — it consumes the year. The cost of an insufficiently revised resubmission went from "one wasted cycle among several" to "the only shot you had."
If you are resubmitting, treat the one-page response as the most consequential page in the package. Reviewers and program officers use it to decide whether the document in front of them is a new proposal or the old one in different clothes, and that determination now precedes review entirely.
The three decisions to make before October
Decide who spends the slot. For every research group with multiple eligible investigators, map out — on paper, before anyone starts writing — who is PI on what, who is co-PI on whose, and who is holding their slot in reserve. Groups that do this in September will submit; groups that discover the conflict in January will not.
Pick your program, then pick your framing. With eight programs in one document and one submission a year, the choice of which program officer's portfolio your proposal lands in is the highest-leverage decision you make. It is worth an email or a call to two program officers before you write, describing the work in three sentences and asking which portfolio fits. That conversation is free, and it is the closest thing to a preliminary review this structure offers.
Submit inside the window, early. Fall or winter, not spring. The one-per-year cap punishes drift more than any deadline ever did, and the only defense against a slow review is starting the clock early.
NSF removed the date that used to organize the materials research year. What replaced it is not freedom — it is a quota, and quotas reward planning far more than deadlines ever did.