Code of Federal Register

Published by the Office of the Federal Register, National Archives and Records Administration (NARA), the Federal Register is the official daily publication for federal proposed rules and final rules. The Federal Register also includes notices of federal agencies and organizations, executive orders and other presidential documents.

The Federal Register is the document that provides the official notice to any regulatory action such as nonattainment designations, National Ambient Air Quality Standards (NAAQS) revisions, etc.