This OpenAIRE Policy and Legal Task Force webinar focuses on recent developments around Plan S. Johan Rooryck, cOAlition S Open Access Champion, talks about cOAlition S and what Research funding organizations in cOAlition S want; research visibility; Plan S: strong principles; implementation guidance: key challenges, routes to compliance, transformative arrangements; implementation: developing a Journal Checker Tool; working with key stakeholders: researchers, early career researchers, publishers, universities; and other activities: transparent pricing and Fair Open Access Alliance (FOAA), non-APC funding models and cOAlition S office. Niamh Brennan, Trinity College Dublin and OpenAIRE NOAD in Ireland, talks about Ireland’s experience with its National Open Science Strategy and Plan S: the scholarly publishing landscape in Ireland, Ireland’s Open Access Repository Network and National Open Access Research Portal http://rian.ie, HRB Open Research, National Open Research Forum, mapping national OA Policy to Plan S (1st iteration), National Framework on the Transition to an Open Research Environment – ‘Plan S-friendly’ – but its primary concern is to be more ‘Irish research-friendly, ‘AmeliCA-friendly’ – in terms of its emphasis on academy-based infrastructures and on alternatives to fee-based publishing and supportive of scholarly communication initiatives in the Global South, stressing equity, bibliodiversity and revisiting the issues of copyright and licences, immediate Open Access & Choice of Open Access Route calling to end publisher embargoes on researchers self-archiving their AAMs, and diamond publishing. The webinar recording also includes questions and discussion.