PNAS Review Time
PNAS (Proceedings of the National Academy of Sciences)'s review timeline, where delays usually happen, and what the timing means if you are preparing to submit.
While you wait
Waiting on PNAS (Proceedings of the National Academy of Sciences)? Get your next move ready.
The PNAS (Proceedings of the National Academy of Sciences) wait is out of your hands; the next move isn't. Scan your next manuscript free, or run this paper through the scan to see what reviewers typically push back on, so the revision response is ready when the decision lands.
Quick answer: PNAS does not publish its own decision times, so the best public guide is author reports. On SciRev (130 reports), an immediate rejection takes about 17 days, the first review round about 1.6 months, and accepted papers about 2.7 months of total handling.
The first gate is the biggest. PNAS says more than 50% of submissions are declined at initial evaluation, before any outside reviewer sees them.
If your paper is already in the system, the PNAS under review guide explains what each status means while you wait. Submissions go through PNAS Central (pnascentral.org); for scope and fit, see the PNAS journal guide.
PNAS review time at a glance
Stage | Who acts | Typical time | Source |
|---|---|---|---|
Initial evaluation | An Editorial Board member (an NAS member) | Rejection at this stage: about 17 days | PNAS peer review policy; SciRev |
Editor assignment | A member editor or guest editor in your field | Part of the first review round | PNAS peer review policy |
Peer review | At least two independent experts | First review round: about 1.6 months | PNAS peer review policy; SciRev |
Final decision | The Editorial Board member, on the editor's recommendation | Accepted papers: about 2.7 months of total handling | PNAS peer review policy; SciRev |
Figures checked on 2026-09-25. SciRev numbers are self-reported by authors, so read them as a range, not a promise.
What slows a PNAS paper down: three decision points
PNAS runs a three-tier process, and each tier can stop the clock.
- Editorial Board assessment. Your paper goes to a Board member in one of 31 NAS disciplines. That person can decline it without review, and this is where most rejections happen.
- Member editor or guest editor. If the Board member sees promise, a member editor who works in your field, or a guest editor when NAS lacks the expertise, takes over and runs peer review.
- Independent review. At least two outside experts review every research paper, whatever the submission route. The editor weighs their reports and recommends a decision to the Board member.
Every hand-off adds time. A paper in a crowded discipline, or one that needs a guest editor, can sit longer between tiers than the medians suggest.
Direct and Contributed submissions
Most PNAS papers are Direct Submissions. NAS members may also contribute two research manuscripts a year in their area of expertise, on work where they had a direct, significant role. Contributed papers are still reviewed by at least two independent experts. Brief Reports always follow the Direct Submission route.
If you are not working with an NAS member on the paper, plan on the Direct route. The timings on this page come mostly from Direct Submissions.
What the desk screen checks first
The initial evaluation turns on whether the result matters outside one specialty. PNAS asks for a Significance Statement of no more than 120 words, written for an undergraduate-educated scientist outside your field. The abstract is limited to 250 words. Research Reports run to a preferred 6 pages, with a maximum of 12.
In our pre-submission review work, the PNAS papers that stall at the first gate usually have a Significance Statement that still reads like the abstract: accurate, dense and aimed at the subfield. Rewriting it for a chemist reading a biology paper, or the other way round, is the cheapest fix available before you submit. A PNAS submission readiness check reads it that way.
What to do while waiting
Line up the next journal. More than half of PNAS submissions end at initial evaluation, so decide on the fallback before the decision arrives. For broad-audience papers the usual next stops publish their own speed figures:
Journal | Median days to first editorial decision | Source |
|---|---|---|
Nature Communications | 9 | Nature Portfolio metrics, 2025 |
Communications Biology | 6 | Nature Portfolio metrics, 2025 |
Cell Reports | 5 | Cell Press performance metrics |
These are first-decision medians, meaning the editor sends the paper to review or rejects it. Choose on scope first. A few days of difference in the first decision matter far less than whether the paper fits.
Rewrite the Significance Statement for the next venue. If PNAS declines at initial evaluation, the Significance Statement is usually the part worth reworking, because it is the text written for the broadest reader. The same broad framing helps at Nature Communications and Science Advances.
Prepare for reviewers anyway. List the two or three experiments or analyses a reviewer outside your subfield would ask for. If the paper goes to review, you start the revision with a plan instead of a blank page.
When to follow up
PNAS publishes no follow-up rule. These are our planning bands, built from the figures above:
Time since submission, no decision | What it probably means |
|---|---|
Under 3 weeks | Still at initial evaluation. Nothing to do. |
3 weeks to 2 months | Probably with a member editor and reviewers. Normal. |
Past 3 months | Beyond the typical first round. A short status query quoting the manuscript number is reasonable. |
Readiness check
While you wait on PNAS (Proceedings of the National Academy of Sciences), scan your next manuscript.
The scan takes about 2 to 3 minutes. Use the result to decide whether to revise before the decision comes back.
Submit if, think twice if
Submit if:
- The Significance Statement would make sense to a scientist outside your field on first reading.
- The paper fits the 6-page preferred length without pushing essential methods into the supplement.
- You have a fallback journal ready, because more than half of submissions end at initial evaluation.
Think twice if:
- The result only matters inside one subfield. That is the main reason papers stop at the first gate.
- You need a decision within a month. Even a fast rejection takes about 17 days on author reports, and a reviewed paper takes about two months to a first decision.
- An NAS member co-authored the work and has a contribution slot left for the year. Ask whether the Contributed route applies before you default to Direct.
For the full package, see the PNAS submission process, the PNAS formatting requirements and the PNAS cover letter guide.
Frequently asked questions
PNAS does not publish median decision times. Authors reporting on SciRev (130 reports) give about 17 days for an immediate rejection, about 1.6 months for the first review round, and about 2.7 months of total handling for accepted papers.
PNAS says more than 50% of submissions are declined at initial evaluation by the Editorial Board.
An Editorial Board member, who is an NAS member, screens the paper and can decline it. If it proceeds, a member editor or guest editor manages review by at least two independent experts, and the Board member makes the final decision.
Most PNAS papers are Direct Submissions. NAS members may also contribute two research manuscripts a year in their area of expertise on work in which they had a direct, significant role. Brief Reports always follow the Direct Submission route.
Sources
- PNAS editorial and journal policies: the three-tier review process, more than 50% of submissions declined at initial evaluation, at least two independent reviewers.
- PNAS submitting your manuscript: Direct and Contributed submissions (two per NAS member a year), 250-word abstract, 120-word Significance Statement, 6-page preferred length and 12-page maximum.
- Speed metrics for Nature Communications and Communications Biology (2025), and Cell Reports information for authors: checked 2026-09-25.
- SciRev: PNAS: 130 author reports; immediate rejection 17 days, first review round 1.6 months, total handling of accepted papers 2.7 months (checked 2026-09-25).
Free guide
Waiting is not the same as being ignored, and there is a way to tell.
Reviewers usually get ten days. When it has been months, an appeal and a complaint are different instruments with different addresses, and only one of them fits a delay. This is which to use, and the wording that gets an answer.
Final step
Done interpreting the status? Put the wait to work.
The PNAS (Proceedings of the National Academy of Sciences) decision will arrive on the journal's clock. What you control is what's next: scan your next manuscript free, or run this paper through the scan so the likely reviewer pushback is mapped before the revision request lands.
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Turn a decision into a clear next step.
Use the practical response workflow when a manuscript needs revision, or the process guide when you need to understand what the editorial status means.
Where to go next
Start here
Same journal, next question
- PNAS 'Under Review': What Each Status Means and When to Expect a Decision
- PNAS Submission Process: What Happens and What Editors Judge First
- PNAS Impact Factor 2026: 9.5, Q1, Rank 14/135
- How to Avoid Desk Rejection at PNAS
- Is PNAS a Good Journal? What the Data and Editorial Model Tell You
- PNAS Acceptance Rate 2026: What ~16% Actually Means