The United States
Department of Homeland Security, commonly referred to as "USDHS"
or "DHS", is a
department of the federal government.
The Immigration and Nationality
Act, regulates the admission of aliens into the United States. The Act
designates the Attorney General (Department of Homeland Security) and the Secretary
of State (Department of State) as the principal administrators of its
provisions.
The United States Citizenship and
Immigration Services (commonly referred to as the "USCIS"), is a division of the
Department of Homeland Security and performs most of the Attorney General's function
under the Act and enforces and applies the immigration laws of the United
States. The USCIS previously was known as the Immigration and
Naturalization Service "INS".