RCUK has published ( 8 April 2013) the latest version of its Policy and Guidance on Open Access. This applies to publication of peer reviewed research articles and conference proceedings which acknowledge RCUK funding.
It has also provided a FAQ document, which will be updated as and when new questions arise.
The changes aim to further clarify the guidance, and draw on comments received from across the research community, learned societies and publishers following a call for input in March.