The Journal Checker Tool (JCT) is an online tool created by cOAlition S that enables authors funded by research organisations supporting Plans S to find compliant “routes” through which to publish their articles.
The following funding agencies have open access requirements pertaining to publications arising from your research and, increasingly, your data:
These guidelines explain the rules on open access to scientific peer reviewed publications and research data that beneficiaries have to follow in projects funded or co-funded under Horizon 2020.
You may also find this FAQ document from the EU useful.
This guide by OpenAIRE is the complete guide for researchers and project coordinators on how to comply with the EC Open Access Policies in Horizon 2020 and FP7.