# NIH Just-in-Time vs. Other Support: What's the Difference Just-in-Time is the process NIH uses to collect information from an applicant organization after an application has received a favorable review score and appears likely to be funded. Other Support is a specific disclosure document, one of the items NIH usually asks for during that Just-in-Time process, that lists every financial and material resource a key person on the project receives for research. The two terms get mixed up constantly because they travel together. If you search "nih just-in-time other support," you will find forum posts, university websites, and grant office pages that treat the phrases as if they described the same thing. They do not. One is a timing and workflow mechanism. The other is a structured report about money, effort, and resources. Understanding just-in-time vs. other support as two separate things makes the pre-award phase far less confusing, and it changes how you should plan your applications long before any score comes back. This article walks through what each term means, what goes into each one, why NIH collects them, and how early-career scientists can build both into their grant proposal planning instead of scrambling when the request email arrives. ## What Just-in-Time Means at NIH Just-in-Time, usually abbreviated JIT, is an award-stage process, not a form. When a peer review meeting or study section scores an application, and that score suggests the application has a realistic chance of funding, NIH can ask the applicant organization to submit certain materials before it makes an award. The name is literal. NIH requests these materials "just in time" for award preparation rather than collecting them from every applicant up front. The logic is efficiency. NIH receives a very large number of competing applications each cycle, and the majority will never be funded. Asking every applicant to prepare certifications, animal care approvals, and resource disclosures for applications that will never be awarded would waste enormous amounts of investigator and administrator time. By deferring these items to the post-review stage, NIH reduces the burden on applicants who submitted competitive applications that did not end up fundable. A Just-in-Time request does not mean the grant is funded. It means the application is in a fundable range and NIH is gathering what it needs in case it decides to fund. Scores can fall in the pay line and the application still may not be funded because of institute priorities, budget conditions, or program balance. Treat the JIT request as a serious positive signal and a prompt to act, not as a promise. The request typically comes from NIH program staff or grants management staff, and it goes to the Authorized Organizational Representative (the institutional official authorized to commit the organization legally) and the Principal Investigator. Your sponsored programs office usually sees it first. When it arrives, there is a deadline, and NIH expects the organization to respond promptly because award processing is waiting on the materials. Just-in-Time applies to most competing research project grant mechanisms, particularly R-series awards such as R01, R03, R15, and R21, as well as many other activity codes. It does not apply universally. Training and fellowship mechanisms and some other award types collect much of this information differently or at the time of application. The funding opportunity announcement and the NIH Grants Policy Statement tell you which items apply to your mechanism, so read both rather than assuming your application follows the standard JIT pattern. ## What Other Support Is Other Support is a disclosure document. NIH defines it as information on all financial resources, federal and non-federal, foreign and domestic, that are available to a key person on the project in direct support of that person's research endeavors, including both active and pending support. "Key persons" generally means the Principal Investigator and other senior or key personnel named on the application. The word "resources" matters more than the word "money." Other Support is not just a list of grants. The current NIH format explicitly asks for in-kind resources as well as funded awards. In-kind support means anything of value provided to you for research that you did not pay for out of your own grant. Standard examples include dedicated laboratory space, access to major equipment or core facilities provided specifically for your work, animal facility support, skilled technical personnel who work on your projects, high-value cell lines, reagents, datasets, or software licenses supplied by a collaborator or company. For each active project, the Other Support format page asks for identifying details such as the project number, the source of support, the project title, the Principal Investigator on that award, the award type, the total award amount, the period of performance, your role on the project, and your person months of effort committed to it. For pending applications, you provide the same categories of information with anticipated amounts and anticipated effort, since the final numbers do not exist yet. Person months deserve a plain-language note because they trip up many first-time applicants. NIH expresses effort in person months, which convert your percentage of effort into the number of months you devote to a project over your appointment. If you commit 25 percent of a full 12-month calendar year to a project, that is 3 calendar months. If you have a 9-month academic-year appointment and commit 50 percent of it, that is 4.5 academic person months. NIH provides an official person-months calculator to help with these conversions, and your department administrator can check your math. Since NIH updated the format requirements through a 2021 Guide Notice (NOT-OD-21-073), Other Support is submitted on a standardized format page rather than as a free-form list, and separate pages are required for each key person. The format also requires the individual to certify, with check boxes on the page, that the information is accurate and that any prior notifications of undisclosed items have been reported. NIH encourages (and for some submission types requires) generating the format page through SciENcv, the Science Experts Network Curriculum Vitae tool hosted on the NCBI platform, which pulls your published history from ORCID and produces a compliant document automatically. ## Just-in-Time vs. Other Support: The Core Difference ![Comparison table of Just-in-Time and Other Support across what each is, timing, who submits, contents and whether it guarantees funding.](/article-images/illustrations/nih-just-in-time-other-support-jit-vs-other-support.webp) The clearest way to see the distinction is that one is a question and the other is an answer. Just-in-Time is NIH asking, at the right moment, for the information it needs to make an award. Other Support is one of the specific answers, a document that must be prepared whether or not it is requested at that moment. | Feature | Just-in-Time (JIT) | Other Support | |--|--|--| | What it is | A pre-award process and request from NIH | A structured disclosure document | | Timing | After a favorable review score, before an award decision | Usually submitted as part of a JIT request | | Submitted by | The applicant organization through its Authorized Organizational Representative | Each key person prepares a page, and the institution submits them together | | Contents | Other Support, required certifications, human subjects and animal welfare documentation, and any additional items NIH requests | Active and pending projects, award amounts, person months of effort, in-kind resources, foreign affiliations | | Purpose | Assemble everything needed for award setup and compliance checks | Reveal overlap between projects, overall research capacity, and external financial interests | | Funding guarantee | None, a JIT request signals likely but not certain funding | Not applicable, it is an information report | Reading the table from left to right also explains the most common nih just-in-time other support interpretation problem in search results. When someone asks "what does nih just-in-time other support mean," they are usually asking about the Other Support document that arrives inside the JIT request. That document is the component that takes the most work and generates the most questions, so it dominates the conversation. But if you respond to a JIT request by submitting only Other Support and nothing else, your response will be incomplete. ## What the Just-in-Time Request Actually Contains A JIT request bundles several items that would otherwise burden every applicant. The exact list varies by mechanism, but the most common components are: 1. **Other Support** for each senior or key person on the project, in the current NIH format. 2. **Human subjects documentation**, including evidence that personnel have completed training in the protection of human subjects, when the application involves human participants and this education was not submitted with the application. 3. **IRB approval**, meaning approval from the Institutional Review Board that oversees research with human participants, when applicable to the study. 4. **IACUC approval**, meaning approval from the Institutional Animal Care and Use Committee, when the research involves vertebrate animals. 5. **Institutional Biosafety Committee (IBC) approval or documentation**, when the research involves [recombinant DNA](/blog/guides/recombinant-dna), biohazardous materials, or similar concerns. 6. **Additional items NIH specifically requests**, which can include clarifications about overlap, revised budget information, or documentation related to specific program requirements. Because the certifications depend on protocols being approved, the JIT stage can stall when a protocol is still working its way through an IRB or IACUC queue. This is one of the strongest arguments for building award-stage preparation into your grant proposal planning. An applicant whose human subjects protocol is already approved can return JIT materials in days, while an applicant who waits for the JIT request to begin the review process can lose weeks or months of award clock time. ## How to Prepare the Other Support Format Page The Other Support document is where most JIT stress concentrates, so it deserves a close look. The work divides into four content areas. ### Active and pending projects List every project, active or pending, through which you receive or expect to receive resources in direct support of your research endeavors. This includes your role on each project, the total award amount or anticipated amount, the performance period, and your committed effort. Do not filter the list by whether you think a project is "relevant" to the NIH application at hand. Relevance is NIH's judgment to make, and the disclosure is meant to be complete. ### In-kind resources This is the section people most often leave incomplete. In-kind support counts even though no money changes hands on a grant line. If a collaborator's department provides you dedicated microscope time, a company provides compound libraries, or an institution provides dedicated personnel or animal housing for your studies, that is resource support and belongs in your disclosure. If you are unsure whether something qualifies, describe it on the page or ask your sponsored programs office. Over-disclosure is far easier to correct than a missing disclosure discovered during agency review. ### Effort and overlap Person months of effort across your projects are not just bookkeeping. NIH program staff compare the committed effort on your current awards with the effort you propose on the new application to judge whether the commitments are feasible and whether the new project would duplicate work already funded elsewhere. Scientific overlap between an existing award and a new proposal is not automatically a disqualifying problem. NIH expects PIs to manage related projects, and it resolves concerns through conversation between your NIH program official and your institution. The serious problem is concealment or surprise, not similarity. ### Foreign engagements and resources The current format requires disclosure of foreign components and foreign government affiliations or appointments that support your research. This includes foreign-funded awards, foreign in-kind resources, and honorary or academic positions at foreign institutions that carry research resources. Agency interest in these disclosures has increased substantially in recent years, and incomplete foreign disclosure is treated as a compliance problem, not a clerical one. If your research involves any international collaboration or resource, disclose it clearly and let NIH decide how to weigh it. ## Why NIH Collects Other Support Understanding the agency's purpose helps you write a cleaner document. NIH reviews Other Support for three main reasons. **Overlap management.** NIH must ensure that it does not pay twice for the same science. If two funded projects have identical specific aims, identical populations, or the same experiments, that is scientific and budgetary duplication. Other Support gives program staff the map they need to spot potential duplication and ask you to clarify boundaries between projects. **Capacity assessment.** A PI who lists twenty active projects with full person-month commitments on each has a feasibility problem, and NIH needs to see that before making an award. Other Support is how the agency evaluates whether your proposed effort is realistic given everything else you have promised. **Integrity and transparency.** Financial and foreign disclosures protect the research enterprise from undisclosed conflicts of interest, including undisclosed foreign government relationships. This function has become central to how NIH treats the document, and it explains why the format page now carries personal certifications and why penalties for omissions have become a serious matter. ## Common Myths About Just-in-Time and Other Support ![Decision path asking whether a JIT request arrived and whether a Notice of Award exists, ending in wait or begin spending.](/article-images/illustrations/nih-just-in-time-other-support-spend-or-wait.webp) **Myth 1: A Just-in-Time request means I got the grant.** It means you are in contention. Applications are sometimes requested for JIT and never funded. Continue normal operations and wait for the official Notice of Award before committing funds, hiring, or project timelines. **Myth 2: Other Support only lists federal grants.** Other Support covers all resources, federal and non-federal, domestic and foreign, cash and in-kind. A foundation grant, an industry gift of reagents, and university-provided core facility access all belong in your thinking, with the format instructions guiding exactly how each is presented. **Myth 3: I only need to think about Other Support when NIH asks.** The most disciplined PIs maintain a current Other Support draft at all times, because awards, completions, and new submissions happen continuously. Scrambling under a JIT deadline is how errors happen. **Myth 4: Other Support is the same as NSF's Current and Pending document.** The two serve similar purposes, and experience with one helps with the other, but the formats, definitions, and submission workflows differ. Never copy-paste one agency's disclosure into another agency's requirement without checking the target format line by line. **Myth 5: If my other support changes after I submit it, it does not matter.** NIH expects updated information before the award is issued. New awards, new resources, or withdrawn applications that arise between your submission and the award decision should be reported through your institution so NIH receives a current version. ## Grant Proposal Planning Around Just-in-Time and Other Support The difference between a smooth JIT phase and a painful one is decided months earlier, during grant proposal planning. Three habits do most of the work. **Maintain a living resource inventory.** Keep a running record of every award, pending application, and in-kind resource attached to you and each of your key collaborators, with effort percentages, award amounts, and end dates. Update it whenever anything changes. When a JIT request arrives, the Other Support format page becomes a formatting exercise instead of an archaeology project. **Plan effort commitments across applications together.** When you draft a new application, look at the person months you have already committed elsewhere. If the new proposal requires 6 calendar months of your effort and your existing awards already commit 9 of your 12, the arithmetic fails before NIH ever sees the application, and reviewers and program staff can see it too. Early-career investigators in particular benefit from building a realistic effort map across a two- to three-year horizon. **Front-load the certifications.** If your proposed project involves human participants or animals, begin protocol development and review submission early enough that approvals will exist by the time a JIT request could arrive. A grant-writing course that covers the full award lifecycle, not just the writing phase, will usually emphasize exactly this point, because the certifications are the JIT items most likely to delay an award. **Communicate with your program official.** If you know your new application overlaps meaningfully with an existing award, raise it proactively. NIH program staff handle overlap conversations routinely, and an applicant who explains the boundary between two related projects before the JIT stage comes across as transparent rather than cornered. **Involve your grants office early.** The Authorized Organizational Representative submits JIT materials, not you personally. Your sponsored programs office knows the institution's workflow, the format requirements, and the certification documentation on file. Bring them into your planning timeline instead of treating them as a last-mile courier. ## Common Mistakes and Limitations These are the errors that generate most JIT-related correspondence between institutions and NIH, along with honest limits on what this document can and cannot resolve. - **Submitting Only Other Support in response to JIT.** The request usually asks for several items. Read the request carefully and confirm with your grants office that every requested component is included. - **Sending materials before NIH asks.** Do not volunteer JIT materials for an application that has not been scored or selected. If NIH wants something, it will request it through the proper channels, and unsolicited submissions create version-control confusion. - **Omitting in-kind resources.** The assumption that only salary-supporting grants count is wrong and is the single most common format-page error. - **Rounding effort incorrectly.** Person months must be consistent with the percentages stated elsewhere in your application and with your institution's records. Inconsistent effort across documents raises questions that are entirely avoidable. - **Forgetting pending applications.** Pending means submitted but not yet awarded, including applications to NIH, other federal agencies, foundations, and industry sources. Anticipated amounts and anticipated effort are acceptable because exact figures do not exist yet. - **Underdisclosing foreign ties.** Any resource, position, or affiliation from a foreign source that supports your research should be disclosed. When in doubt, disclose and describe. - **Treating a JIT request as an award notice.** No spending, hiring, or protocol enrollment should begin on the strength of a JIT request alone. The Notice of Award is the official starting signal. - **Assuming the document answers overlap questions by itself.** Other Support is a snapshot. NIH may still ask for a written comparison of specific aims between your new application and an existing award. Having that comparison drafted in advance, even informally, saves days. - **Limitation on precision.** Format details, submission systems, and required items change as NIH issues new policy notices, and individual mechanisms have their own requirements. Before every submission, confirm the current requirements in the funding opportunity announcement, the NIH Grants Policy Statement, and the current format instructions rather than relying on an old template or a colleague's memory. Individual situations with unusual arrangements, such as split appointments or industry-sponsored work, warrant a direct conversation with your sponsored programs office. ## Frequently Asked Questions ### What does NIH just-in-time other support mean? It refers to the Other Support document that NIH requests as part of the Just-in-Time process, which happens after an application receives a favorable review score and before an award is made. Other Support is a standardized disclosure of all financial and in-kind resources available to each key person for their research. ### When does NIH send a Just-in-Time request? Usually after peer review produces a score that places the application in or near the fundable range, often following council review. Timing varies by institute and funding cycle, and the request goes to your institution's Authorized Organizational Representative and the Principal Investigator with a response deadline. ### Does a Just-in-Time request guarantee funding? No. A JIT request signals that NIH considers the application a strong candidate, but funding depends on institute priorities, budgets, and final decisions. Only the official Notice of Award confirms funding. ### What counts as Other Support? All financial resources, federal and non-federal, domestic and foreign, available in direct support of your research endeavors, including active grants, pending applications, and in-kind resources such as dedicated space, equipment, personnel, materials, and data. The NIH format instructions define the required fields in detail. ### Do I list my collaborators' grants on my Other Support page? You list projects through which you personally receive resources in support of your research endeavors, along with your role and effort on each. Grants where you are a co-investigator receiving effort or resources belong on your page, while projects with no connection to your research effort generally do not. When a case is unclear, disclose it and let program staff sort it out. ### How is Other Support different from NSF Current and Pending? Both disclose active and pending support, but the formats, definitions, submission systems, and treatment of in-kind resources differ between agencies. Prepare each agency's document to that agency's current format rather than reusing one for the other. ### What happens if my Other Support changes after I submit it? Report the change through your institution so NIH receives an updated version before the award is issued. New awards, withdrawn applications, and changed commitments are routine, and NIH expects current information at the time of award. ### Can I start spending or hiring once NIH requests Just-in-Time materials? No. A JIT request does not authorize spending or hiring. The award officially begins on the start date listed in the Notice of Award, and any pre-award costs require explicit authorization. ## Further Reading - [Optimizing Usability of Digital Health Interventions for Nondigitally Native Adults: A Framework-Based Approach to Develop Just-in-Time Adaptive Interventions (JITAIs) and Other Adaptations.](https://pubmed.ncbi.nlm.nih.gov/42579875/) - [A Trauma-Informed, Geospatially Aware, Just-in-Time Adaptive mHealth Intervention to Support Effective Coping Skills Among People Living With HIV in New Orleans: Development and Protocol for a Pilot Randomized Controlled Trial.](https://pubmed.ncbi.nlm.nih.gov/37874637/) - [A Just-in-Time Adaptive Intervention (Shift) to Manage Problem Anger After Trauma: Co-Design and Development Study.](https://pubmed.ncbi.nlm.nih.gov/40402559/) - [The Dosing of Mobile-Based Just-in-Time Adaptive Self-Management Prompts for Caregivers: Preliminary Findings From a Pilot Microrandomized Study.](https://pubmed.ncbi.nlm.nih.gov/37707948/) - [Just-in-Time Adaptive Intervention to Improve HIV Prevention and Substance Use in Youth Experiencing Homelessness (MY-RIDE): Protocol for a Randomized Controlled Trial.](https://pubmed.ncbi.nlm.nih.gov/41072013/) - [A just-in-time adaptive personalized mobile app intervention produces limited short-term reductions in heavy episodic drinking frequency in college students: A randomized control trial during the COVID-19 pandemic.](https://pubmed.ncbi.nlm.nih.gov/40285370/)