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One publisher found when searched for: Publisher: National Academy of Sciences
Publisher: National Academy of Sciences, United States
Journals: 2 journals - involving 1 other organisation
RoMEO: This is a RoMEO green publisher
Copyright: Author License (pdf) - Author FAQ - Prior Publication Policy
Updated: 07-Apr-2011
Although this publisher has default policies, individual journals may have special permissions, especially if they involve other organisations or have paid open access options. Always run a journal title or ISSN search to check.
Author's Pre-print: green tick  author can archive pre-print (ie pre-refereeing)
Author's Post-print: green tick  author can archive post-print (ie final draft post-refereeing)
Publisher's Version/PDF: cross  author cannot archive publisher's version/PDF
General Conditions:
  • Applies to PNAS only
  • On author's personal website, institutional repository or preprint servers only
  • Publisher copyright must be acknowledged
  • Must link to publisher version
  • Publisher's version/PDF cannot be used in repository, but may be used on authors personal website or authors institutional profile website
  • Authors may have deposit in funding body archive or designated repository for public release 6 months after publication or immediately upon payment of fee
  • All PNAS-formatted versions are deposited in PubMed Central for release after 6 months, regardless of funding
Mandated OA: Compliance data is available for 23 funders
Paid Open Access: PNAS Open Access Option
RoMEO Publisher ID: 94 - Suggest an update for this record
Link to this page: http://www.sherpa.ac.uk/romeo/pub/94/
This summary is for the publisher's default policies and changes or exceptions can often be negotiated by authors.
All information is correct to the best of our knowledge but should not be relied upon for legal advice.
 

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RoMEO ColourArchiving policy
GreenCan archive pre-print and post-print or publisher's version/PDF
BlueCan archive post-print (ie final draft post-refereeing) or publisher's version/PDF
YellowCan archive pre-print (ie pre-refereeing)
WhiteArchiving not formally supported
 More on colours and restrictions
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Use this site to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.

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