Site Feedback

Title 50

Displaying title 50, up to date as of 10/08/2026. Title 50 was last amended 10/06/2026.
New Finding Aids are now available on eCFR.gov. The Parallel Table of Authorities, Subject Index, and Agency-prepared Indexes are now online! Learn more
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

Title 50Wildlife and FisheriesPart / Section
Chapter IUnited States Fish and Wildlife Service, Department of the Interior1 – 92
Subchapter CThe National Wildlife Refuge System25 – 38
Part 25Administrative Provisions25.11 – 25.72
Subpart AIntroduction25.11 – 25.13
§ 25.11Purpose of regulations.
§ 25.12What do these terms mean?
§ 25.13Other applicable laws.