1. A few thousand journals voluntarily participate in PMC and have agreements to deposit the final published versions of some or all of their articles directly in PMC.
There are three kinds of agreements:
- Full participation – journal deposits all of its articles.
- Selective deposit – journal/publisher chooses which articles to deposit. A number of publishers offer a program (for example Springer Open Choice, or Wiley Online Open) where an author has the option of paying a fee to make his/her article open access. The publishers generally then deposit these open access articles in PMC.
- NIH portfolio – journal deposits just those articles that fall under the NIH Public Access Policy.
2. Many journals do not have any participation agreement with PMC. In this case, if you are NIH-supported author or principal investigator (PI) or an author or PI supported by other funders that have public access policies, you are responsible for ensuring that the accepted, peer-reviewed manuscript called for by a funding agency’s public access policy is deposited in the NIH Manuscript Submission (NIHMS) system. Only manuscripts that are covered by the public access policies of participating funding organizations can be deposited in the NIHMS.
For more details on PMC participation and PMC content see the following pages: