Terms of Use and Access

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PNAS Terms of Access: “Proceedings of the National Academy of Sciences” and “PNAS” are registered trademarks of the National Academy of Sciences of the United States of America (NAS). PNAS and PNAS Online are both copyrighted © 2019 by the National Academy of Sciences.

  1. The person using PNAS Online may view, reproduce, or store copies of the journal, provided that the information is only for their personal, noncommercial use.
  2. Any copies of PNAS Online, in whole or in part, must include the copyright notice.
  3. Except for uses consistent with the "Fair Use" limitations of US Copyright Law, the person using PNAS Online may not: (i) distribute a copy (electronic or otherwise) of any document or file from this server for commercial purposes without the written permission of the NAS, (ii) alter a copy of any retrieved, printed, or stored document or file from this server, or (iii) charge for a copy (electronic or otherwise) of any file or document from this server.
  4. Any use of PNAS Online in whole or in part should include customary bibliographic citation, including author attribution, date, article title, Proceedings of the National Academy of Sciences, and the URL www.pnas.org.
  5. Institutional online subscription accounts are restricted to authorized users and sites as defined by the PNAS Terms and Conditions for Institutional Site License Subscribers.
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  7. For permission to copy beyond that permitted by Section 107 or 108 of the US Copyright Law and to reprint articles, contact the Copyright Clearance Center.
  8. Any abuse of these policies will result in the immediate and permanent cessation of access to all PNAS servers and services and will be pursued to the fullest extent permitted under all applicable laws, treaties, and conventions.

Collection and Storage of Personally Identifiable Information: PNAS collects Personally Identifiable Information ("PII") such as subscriber name, email address, telephone number, postal address, organizational affiliation, IP address, and system usage. This PII information is collected to help us provide subscription services, monitor usage, troubleshoot, and offer renewal information. PNAS also separately stores, names, organizational affiliation, and email addresses for the purpose of sending news and occasional important announcements to subscribers. PII is stored indefinitely, unless removal is requested by the user. Subscribers can opt-out by contacting PNASsubsdept@nas.edu.

Website users may opt to establish a customized account that requires the input of PII. More information about how this data is stored and used is available at www.highwirepress.com/privacy-policy.

Warranties

PNAS is officially published by the NAS and, as such, is the version of record.

In no event shall the NAS be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of this information.

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PNAS.org is under development and changes may be made in these publications and programs at any time.

[07/19]