The general provisions of laws enacted by Congress are interpreted and implemented by regulations issued by various Executive branch agencies. These regulations apply the law to daily situations.
After regulations are published in the Federal Register, they are collected and published in the Code of Federal Regulations, commonly referred to as the CFR.
The CFR is arranged by subject title and generally parallels the structure of the U.S. Code (U.S.C.), which is a collection of laws enacted by Congress. Therefore, Title 8 of the CFR deals with "Aliens and Nationality”, as does Title 8 of the U.S.C. **Please be advised that some of the provisions in Title 8 of the CFR have been preliminarily enjoined and are not currently in effect.**
Although DHS is the primary agency responsible for enforcing the nation’s immigration laws, other agencies also play a role in enforcing aspects of immigration law that closely relate to their own responsibilities.
We are linking to some of these other Titles of the CFR from our website for completeness. However, we do not assume responsibility for regulatory content published by other agencies. You should consult the agencies in question, or the Government Printing Office (including the Federal Register) for the latest official information.