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Electronic Code of Federal Regulations

Published by Office of the Federal Register | National Archives and Records Administration | Metadata Last Checked: June 25, 2025 | Last Modified: 2016-05-27
The Electronic Code of Federal Regulations (e-CFR) is the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation. The Electronic Code of Federal Regulations is updated daily. The Electronic Code of Federal Regulations and its accompanying XML data is not yet an official format of the Code of Federal Regulations. Only the PDF and Text versions of the annual Code of Federal Regulations have legal status as parts of the official online format of the Code of Federal Regulations. The XML-structured files are derived from SGML-tagged data and printing codes, which may produce anomalies in display. In addition, the XML data does not yet include image files. Users who require a higher level of assurance may wish to consult the official version of the Code of Federal Regulations or the daily Federal Register on FDsys.gov.

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