TL;DR: The NIH R56 — officially the High Priority, Short-Term Project Award — is a one- or two-year block of interim funding NIH awards to a subset of unfunded but highly meritorious R01 applications, so the applicant can gather more data and revise a stronger resubmission. There is no application form, no funding opportunity announcement, and no submission deadline for an R56. Institute and center (IC) program staff select R56 recipients directly from the pool of R01 applications already pending in that fiscal year — you cannot apply for one, and no amount of asking will get you an application to fill out. The only way to become eligible is to submit the strongest possible R01 in the first place and score at or near your IC’s payline.
| Question | Answer |
|---|---|
| Full name | High Priority, Short-Term Project Award (R56) |
| Can you apply for it? | No — there is no R56 application. Recipients are selected by IC staff from pending R01 applications. |
| What it funds | Interim support to gather additional data and strengthen a revised/resubmitted R01 application |
| Who is eligible | PIs whose competing R01 application, from a domestic organization, falls in the most meritorious half of the priority-score/percentile range for that IC and fiscal year |
| Duration | Up to 2 years, not renewable |
| Budget | Up to the amount requested in the original R01 application; funded with indirect costs at the institution’s negotiated rate |
| Funding instrument / mechanism code | Grant; Budget Mechanism Code RP – Research Projects |
| What happens if the R01 gets funded while R56 is active | The remaining (unspent) balance of the R56 award is deducted from the total approved amount of the new competing award |
| Close-out requirements | Final RPPR, final Federal Financial Report, and (unless a subsequent application is funded) a final invention statement (HHS 568), all due 120 days after the R56 project period ends |
Last verified 2026-08-16 against NIH’s own R56 activity-code page, grants.nih.gov/grants/funding/r56.htm.
What the R56 actually is
The R56 is one of NIH’s “activity codes” — the two-letter-plus-number labels (R01, R21, K99, etc.) that identify a specific type of grant mechanism. NIH’s own description states its purpose is “to provide limited interim research support based on the merit of a pending R01 application while applicant gathers additional data to revise a new or competing renewal application.” In plain terms: it is a stopgap. It exists for the specific case where a competing R01 application was strong — strong enough that an institute doesn’t want to lose the project — but didn’t quite clear the funding line in that review cycle.
Because it bridges the gap between an unfunded R01 cycle and a stronger resubmission, research administrators and PIs commonly refer to it informally as a “bridge award” or “R56 bridge award.” That is descriptive shorthand for how the mechanism functions, not a second, separate NIH program — on grants.nih.gov it is listed under its one official name, the High Priority, Short-Term Project Award.
Why you cannot apply for an R56
This is the detail that trips up most PIs searching for this mechanism, and NIH states it plainly on its own program page: “Applicants do not apply for High Priority, Short-Term Project Award (R56) awards. Recipients of R56 awards are selected by institute and center staff from R01 applications that fall at or near the payline margins.”
There is no:
- R56-specific funding opportunity announcement (FOA) or Notice of Funding Opportunity to respond to
- Separate application form, specific-aims page, or budget to submit under an R56 label
- Submission deadline tied to the R56 itself
- Formal request process, letter of intent, or “apply for bridge funding” pathway at the NIH level
Instead, the R56 decision is made entirely on the institute or center’s side, using an application you have already submitted as a standard competing R01. If your program officer or IC decides to convert your unfunded (or, in some cases, previously approved but inactivated) R01 application to an R56, they will contact you — you do not initiate it.
How institute and center staff select R56 recipients
Per NIH’s own program description, the selection process works like this:
- The R01 application goes through the normal NIH process: submission, study-section peer review, and assignment of a priority score and percentile rank.
- The IC identifies R01 applications pending award for that fiscal year and nominates a subset for conversion to R56.
- Nominees must fall in the most meritorious half of the priority-score/percentile range — NIH describes this as applications “at or near the payline margins,” i.e., close enough to the funding line that a small amount of additional preliminary data could plausibly push a revised application over it.
- Within that pool, the IC selects based on scientifically creative and innovative approaches that fit the institute’s mission — a program-level, discretionary judgment call, not a formula.
- Previously approved but inactivated applications from the same period may also be considered, and if awarded, are converted to an R56.
Because the mechanism draws only from applications already near a fundable score, being far outside your IC’s payline effectively rules an application out of R56 consideration regardless of how the science is judged qualitatively.
A note on Early Stage Investigators
If every PD/PI on the R01 (or an R01-equivalent, which explicitly includes R56) application has Early Stage Investigator (ESI) status on the date the application was submitted, the application is flagged as ESI and receives special consideration during both review and funding. This is one reason NIH describes the R56 as helping “early career stage scientists trying to establish research careers” as well as “experienced scientists who can benefit from interim funding while they revise their applications.”
“How do I get an R56?” — what actually improves your odds
Since there is no application to submit, the honest answer to “how do I get an R56” is that you don’t pursue the R56 directly — you maximize the chance that your IC chooses to convert your R01. In practice that means:
- Submit the strongest possible R01. The R56 pool is drawn entirely from your institute’s regular competing R01 applications for that fiscal year; there is no separate submission track to strengthen your odds through.
- Land in the most meritorious half of your IC’s percentile range. Applications well outside the payline are not part of the pool IC staff select from, regardless of scientific merit.
- Talk to your program officer after review. Program officers know which applications are being considered for IC-level actions like the R56. If your score is borderline, ask directly whether the IC is considering it — but understand this is a conversation about an existing application, not a request for a new one.
- Have a revision plan ready regardless. Because R56 recipients are also “encouraged to revise and resubmit their original competing application at the earliest convenient date,” treat the R56 as extra runway for a resubmission you should be planning anyway, not a reason to wait and see.
If your institute doesn’t select your application for an R56, your paths forward are the same ones available to any unfunded competing R01: revise and resubmit under standard NIH resubmission guidelines, seek other funding mechanisms, or pursue institutional bridge funding (a separate, institution-level program that some universities offer independently of NIH and that varies by institution).
Award terms once you have one
| Term | Detail |
|---|---|
| Duration | Limited to two years; the award is not renewable |
| Amount | Can range up to the level requested in the underlying R01 application; funded with indirect (facilities-and-administrative) costs at the institution’s negotiated rate |
| Organization eligibility | Only applicable to R01 applications from domestic (US) organizations |
| Overlap with a funded resubmission | If a revised, competing application is funded while the R56 is still active, the unspent balance of the R56 award is deducted from the total approved amount of the new award |
| Reporting | A final Research Performance Progress Report (RPPR), a final Federal Financial Report (FFR), and a final invention statement (HHS 568) are all due 120 days after the R56 project period ends; the progress report must identify which parts of the original proposal the R56 funds were used to pursue |
| Invention statement exception | If the recipient goes on to be funded on a subsequent (usually resubmitted) application, the final invention statement is not required |
How R56 compares to nearby mechanisms
The R56 is not the only NIH mechanism where an institute converts or redirects an existing application rather than accepting a direct submission — it’s a useful pattern to recognize generally. It is also worth distinguishing from mechanisms that look similar on paper:
- R56 vs. the underlying R01: the R56 is not a standalone grant program with its own scope of work — it exists only in reference to a specific R01 application that has already been submitted and reviewed.
- R56 vs. institutional bridge funding: many universities separately offer their own short-term “bridge funding” from internal funds to PIs between grant cycles. That is an institution-level program with its own (often quite different) application process, not the NIH R56 — check with your sponsored programs office for what your institution offers, since terms vary widely by institution and this site does not track individual institutional bridge-funding policies.
- R56 vs. K-series career awards: the R56 supports a specific project already under review, not a career-development plan. See K Award vs. R01 for how NIH’s career-development and research-project tracks differ more broadly.
Frequently asked questions
Is R56 the same as a “bridge award”?
Functionally yes — “bridge award” is the common informal name for what NIH’s grants.nih.gov page formally calls the High Priority, Short-Term Project Award (R56). There is only one NIH program here, not two competing mechanisms with different names.
Can I ask NIH to consider my application for an R56?
You can and should talk to your program officer about where your application stands, but there is no formal request or nomination process available to applicants. The decision to convert an R01 to an R56 is made by IC staff, not initiated by the PI.
Does getting an R56 guarantee my R01 will eventually be funded?
No. The R56 is interim support to strengthen a resubmission; the resubmitted or renewal application still goes through the normal NIH review and funding process, competing on its own merits under standard resubmission guidelines.
Can a foreign institution receive an R56?
No. NIH’s program page states the R56 is only applicable to R01 applications from domestic (US) organizations.
How long can an R56 award run?
Up to two years, and it is not renewable — you cannot receive a second R56 on top of the first for the same application.
What happens to unspent R56 funds if my revised application gets funded?
The remaining balance of the R56 award is deducted from the total approved amount of the newly funded competing award, rather than paid out separately alongside it.
Primary source for the facts on this page: NIH, “High Priority, Short-Term Project Award (R56),” grants.nih.gov/grants/funding/r56.htm. Institutional bridge-funding programs, where mentioned, vary by university and are not tracked in detail on this site — confirm current terms with your own sponsored programs or research development office.
