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Flexible Article Length

A standard regular research report submitted to PNAS is 6 pages, or approximately 4,000 words, 50 references, and 4 medium-size graphical elements (i.e., figures and tables). The preferred length of articles remains at 6 pages, but PNAS allows articles up to a maximum of 12 pages as of July 1. See the PNAS Author Center for additional details on manuscript length and publication fees.

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All authors may be named in the citations for initial submissions. For revisions or final submissions, if there are more than five authors, list the first author's name followed by et al.

2 Updates and Announcements


Submit your research to PNAS, one of the world's most-cited and comprehensive multidisciplinary scientific journals.

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In accordance with the recommendations from the National Academies of Science, Engineering, and Medicine, PNAS staff members are currently working remotely to help slow the spread of COVID-19. Some of the vendors we work with to publish articles are at reduced capacity. All PNAS operations will continue, and we apologize in advance for any editorial or production delays you might experience.

We are aware that many labs have shut down temporarily in an effort to limit the spread of the virus. PNAS recognizes that some reviewers might need additional time to assess manuscripts, and we are happy to accommodate them. We are also extending the resubmission deadline for invited revisions, as needed. At the same time, in the interest of public health we are asking editors and reviewers of COVID-19–related papers to prioritize their review. We thank everyone for their patience and cooperation during this time.

Please contact us with any questions or concerns at pnas@nas.edu. We are available Monday through Friday, 8:30 AM to 5:00 PM ET and will continue to monitor email as usual.

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ORCID provides a persistent digital identifier that distinguishes you from every other researcher. PNAS strongly encourages all authors to use their ORCID identifier when submitting papers. Click here to learn more about ORCID.

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