http://grants.nih.gov/grants/guide/notice-files/NOT-OD-08-033.html
The Director of the National Institutes of Health shall require that all
investigators funded by the NIH submit or have submitted for them to the
National Library of Medicine's PubMed Central an electronic version of their
final, peer-reviewed manuscripts upon acceptance for publication, to be made
publicly available no later than 12 months after the official date of
publication: Provided, That the NIH shall implement the public access policy
in a manner consistent with copyright law.
http://edocket.access.gpo.gov/2009/E9-3442.htm
"direct feeds from [institutional repositories (IRs) are]... worthwhile...
but... raise important technical and logistical challenges regarding author
approval, copyright permissions, quality control, and formats for electronic
transfer. The NIH remains open to closer collaboration with institutional
[repositories] and will consider this issue as the Policy matures."
