eCFR

The Electronic Code of Federal Regulations, or eCFR, is an online, continuously updated version of the Code of Federal Regulations (CFR), the codification of federal rules in force in the United States. It is maintained by the National Archives and Records Administration (NARA) in coordination with the Office of the Federal Register (OFR). The eCFR provides access to the current text of regulations, organized by title, part, and section, and is designed to reflect changes as they are published in the Federal Register.

The eCFR serves as a practical, near real-time resource for government staff, legal practitioners, businesses, researchers, and the public who need up-to-date regulatory text. It complements the official CFR editions by offering a searchable, navigable interface and rapid updates between the publication of the Federal Register and the print or official electronic CFR volumes.

It is important to note that the eCFR is not the official legal edition of the CFR. The official text is published in the daily Federal Register and in the annual CFR volumes. The eCFR aims to provide a current, usable version of the CFR as a working copy, while the Federal Register remains the authoritative source for the official record of changes and legal status.

Access to the eCFR is available at ecfr.gov, which provides features such as title/part/section navigation and search, supporting users in locating and reviewing regulatory text efficiently.