Where an APC is paid from COAF, the journal must:
(a) deposit, on behalf of the author, the final version of the article - which includes all the changes that arise from the peer-review, copy-editing and proofing processes - in PubMed Central (PMC), where it must be made freely available at the time of publication (a link to the article on the publisher site is not sufficient); and
(b) license the content under a Creative Commons Attribution-only ( CC-BY) licence.
Content deposited in PMC is automatically mirrored to the Europe PMC repository.
You can use the SHERPA/FACT database to check whether your journal offers a compliant publication route, and which route to opt for.