Statutes usually provide broad authority and apply to general
situations. Agencies must take the general provisions of the statute
and apply them to specific, detailed situations. The
INS
regulations serve this purpose. There are immigration laws that
involve other agencies in addition to the INS. For example, both the
Department of Labor and
Department of State are involved in the administration of the
immigration laws. You can find these additional regulations
here
(Other Immigration CFRs).
One source of legal interpretations of immigration laws and
regulations are administrative decisions. The
Board of Immigration Appeals is a separate agency within the
Department of Justice that reviews immigration cases and issues
appellate administrative decisions that are binding on the INS
nationwide.