NIH requires that the peer-reviewed articles it funds be made publicly available on PubMed Central (PMC). The NIH Public Access Policy requires submission of the final peer-reviewed manuscripts that arise from NIH funds to PMC upon acceptance.
What do I need to do?
Many journals will submit to PMC for you ("Method A" journals). Check your acceptance letter or refer to this list from NIH to determine your journal's method.
My Journal/Publisher did not submit for me. Now what?
In addition to Method A, there are other workflows for submitting your paper to PMC:
Instructions for Method C and D Journals
These journals require steps on behalf of the author (Method C) or publisher (Method D) to deposit the manuscript into the NIH Manuscript Submission System (NIHMS).
Gather the files you need, including the Author Accepted Manuscript (AAM) - you'll deposit this and not the publisher's PDF. Can't find your AAM? Refer to this guide for authors on how to obtain an Author Accepted Manuscript from a publisher's journal submission system, where the AAM is stored during the publishing process.
For Method C authors: follow the steps here.
If your article is non-compliant, i.e. does not have a PMCID, the authors or PI will need to address the compliance issue: