When you are negotiating the terms of your publication or copyright agreement, make sure that the agreement includes a stipulation allowing the full text of the paper to be posted to PubMed Central (PMC).
As an example, the kind of language that an author or institution might add to a copyright agreement includes the following:
“Journal acknowledges that Author retains the right to provide a copy of the final peer-reviewed manuscript to the NIH upon acceptance for Journal publication, for public archiving in PubMed Central (PMC) without embargo upon the Official Date of Publication by the Journal."
To avoid miscommunication, awardees and authors will want to let publishers know a manuscript is subject to the NIH Public Access Policy before the publisher decides to review it.
Consult PMC information on submitting papers for steps and tips for authors. In brief the steps are:
Most of the information on this page was taken from the National Institutes of Health Public Access Policy webpage: https://sharing.nih.gov/public-access-policy/submitting-to-pubmed-central