Ireland's Higher Education Authority, a major research funding agency in that country, has enacted an open access mandate that requires searchers to "lodge their publications resulting in whole or in part from HEA-funded research in an open access repository as soon as is practical after publication, and to be made openly accessible within 6 calendar months at the latest, subject to copyright agreement."
Stevan Harnad reports that this is the "world's 52nd Green OA Self-Archiving mandate (the 27th funder mandate)."