(a) In General.--Upon completion of all transfers from the
Immigration and Naturalization Service as provided for by this
Act, the Immigration and Naturalization Service of the
Department of Justice is abolished.
(b) Prohibition.--The authority provided by section 1502
may be used to reorganize functions or organizational units
within the Bureau of Border Security or the Bureau of
Citizenship and Immigration Services, but may not be used to
recombine the two bureaus into a single agency or otherwise to
combine, join, or consolidate functions or organizational units
of the two bureaus with each other.