The Secretary, acting through the Under Secretary for
Border and Transportation Security, shall be responsible for
the following:
(1) Preventing the entry of terrorists and the
instruments of terrorism into the United States.
(2) Securing the borders, territorial waters,
ports, terminals, waterways, and air, land, and sea
transportation systems of the United States, including
managing and coordinating those functions transferred
to the Department at ports of entry.
(3) Carrying out the immigration enforcement
functions vested by statute in, or performed by, the
Commissioner of Immigration and Naturalization (or any
officer, employee, or component of the Immigration and
Naturalization Service) immediately before the date on
which the transfer of functions specified under section
441 takes effect.
(4) Establishing and administering rules, in
accordance with section 428, governing the granting of
visas or other forms of permission, including parole,
to enter the United States to individuals who are not a
citizen or an alien lawfully admitted for permanent
residence in the United States.
(5) Establishing national immigration enforcement
policies and priorities.
(6) Except as provided in subtitle C, administering
the customs laws of the United States.
(7) Conducting the inspection and related
administrative functions of the Department of
Agriculture transferred to the Secretary of Homeland
Security under section 421.
(8) In carrying out the foregoing responsibilities,
ensuring the speedy, orderly, and efficient flow of
lawful traffic and commerce.