The National Institutes of Health has published a revised NIH Grants Policy Statement (NIHGPS, rev. 10/1/2011) applicable to all NIH grants and cooperative agreements with budget periods beginning on or after October 1, 2011.
The revision does not introduce new material; it “incorporates new and modified requirements, clarifies certain policies, and implements changes in statutes, regulations, and policies that have been implemented through appropriate legal and/or policy processes since the previous version of the GPS dated 10/1/2010.” NIH provides a chart of significant changes in Word format.