PNAS FAQ

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Accessing Content & Subscriptions

How can I get PNAS?

All PNAS articles are free within 6 months of publication. Authors who choose the open access option can have their articles made available without cost to the reader immediately upon publication. To learn more about subscribing to PNAS and the open access discount for authors from subscribing institutions, see our Subscription FAQ page.

When does PNAS publish?

PNAS articles are published online directly into an open issue on a daily basis. The date an article appears online is the publication date of record and is posted on the article page. Issues are considered complete every Tuesday. Visit the archive to view all PNAS issues.

How can I get email alerts?

Please visit our alerts page for details on free PNAS email alerts.

Is PNAS free to developing countries?

Yes, PNAS is freely and immediately available in 124 developing countries. Please see Developing Countries Initiatives.

How can I obtain a single copy of an article or a single PNAS issue?

Please visit Subscriptions FAQ.

Are back issues of PNAS available online?

Yes, the entire PNAS Archive is available on this site, with articles dating back to 1915.

Is the print edition of PNAS still available?

Individual printed copies of PNAS issues are available for purchase through our print-on-demand site.

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For the Press

I read about a PNAS article in the news, but I can’t find the article on the PNAS website. Where is it?

Some articles are mentioned in the news a few days before they are published on pnas.org. If it has been more than a week since the news article was published and the PNAS article is still not available, please email pnasnews@nas.edu for assistance.

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Submitting a Paper

What opportunities exist for publication in PNAS?

Visit the Submitting Your Manuscript section of the PNAS Author Center.

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Author Rights & Permissions

Where can I find more information for PNAS authors and details about author rights and permissions?

Please visit the PNAS Author Center for information for authors. For details about rights and permissions, visit our Rights and Permissions page.

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