From the Federal Depository Library Council:
The U.S. Government Printing Office (GPO) and the Office of the Federal Register (OFR), National Archives and Records Administration (NARA), have released an upgraded Electronic Code of Federal Regulations (e-CFR) Web site. As of today, the old e-CFR site has been shutdown and will redirect users to the new site, eCFR.gov.
The new site operates on an upgraded hardware and software platform, and provides an interface that emulates other Federal Register publications on FDsys. Automatic redirects from the old e-CFR website to eCFR.gov will be in place through the end of 2012. Please reset any bookmarks to the new eCFR.gov URL.