8 CFR § 100.1 - Introduction.

---
identifier: "/us/cfr/t8/s100.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "8 CFR § 100.1 - Introduction."
title_number: 8
title_name: "Aliens and Nationality"
section_number: "100.1"
section_name: "Introduction."
chapter_name: "DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "B"
subchapter_name: "IMMIGRATION REGULATIONS"
part_number: "100"
part_name: "STATEMENT OF ORGANIZATION"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "8 U.S.C. 1103; 8 U.S.C. 1185 note (section 7209 of Pub. L. 108-458); 8 CFR part 2."
regulatory_source: "32 FR 9616, July 4, 1967, unless otherwise noted."
cfr_part: "100"
---


# 100.1 Introduction.

The following components have been delegated authority under the Immigration and Nationality Act to administer and enforce certain provisions of the Immigration and Nationality Act and all other laws relating to immigration: U.S. Customs and Border Protection (CBP), U.S. Immigration and Customs Enforcement (ICE), and U.S. Citizenship and Immigration Services (USCIS).

[74 FR 26936, June 5, 2009]