Plan S aims for full and immediate Open Access to peer-reviewed scholarly publicationsfrom research funded by public and private grants. cOAlition S, the coalition of research funders that have committed to implementing Plan S, aims to accelerate the transition to a scholarly publishing system that is characterised by immediate, free online access to, and largely unrestricted use and re-use (full Open Access) of scholarly publications.

cOAlition S is committed to fulfil the specific target set out in Plan S: publications resulting from research funded by cOAlition S members’ grants under calls published as of 1 January 2021 (or earlier at individual members' choice), must be published in Open Access venues (journals or platforms) or made openly and immediately available in an Open Access repository.

Plan S applies to all peer-reviewed publications that are based on results from research funded fully or partially by cOAlition S members. This guidance specifies the principles of Plan S and provides paths for their implementation regarding scholarly articles. cOAlition S will, by the end of 2021, issue a statement on Plan S principles as they apply to monographs and book chapters, together with related implementation guidance.