U.S. Department of Energy has released its Public Access Plan.
Here's an excerpt:
The Department proposes to host, a portal and a search interface tool, the Public Access Gateway for Energy and Science (PAGES), to enhance the discoverability of unclassified and otherwise unrestricted scholarly publications resulting from DOE funding. PAGES will provide metadata and abstracts for such publications in a way that is open, readable, and available for bulk download. The PAGES metadata catalog will be included in the Department's Enterprise Data Inventory and Public Data Listing. PAGES will also link to the full text VoR hosted by the publisher when the article is available on the publisher's site openly and without charge. In instances where this is not the case, PAGES will link to a full-text version of the accepted manuscript twelve months from the article publication date and then link to the VoR when and if it becomes available. Metadata accompanying the accepted manuscript, e.g., author name, journal title, and digital object identifier (DOI) for the VoR, ensures that attribution to authors, journals, and original publishers will be maintained.