Administrative Law: The law governing the organization and operation of administrative agencies (including executive and independent agencies) and the relations of administrative agencies with the legislature, the executive, the judiciary, and the public. • Administrative law is divided into three parts: (1) the statutes endowing agencies with powers and establishing rules of substantive law relating to those powers; (2) the body of agency-made law, consisting of administrative rules, regulations, reports, opinions containing findings of fact, and orders; and (3) the legal principles governing the acts of public agents when those acts conflict with private rights.
Black's Law Dictionary, 9th ed., 2009
International Administrative Law: 1. The internal law and rules of international organizations. 2. The substantive rules of international law that directly refer to the administrative matters of individual states. 3. Domestic administrative law specifically concerned with international problems or situations. — Also termed administrative international law.
Black's Law Dictionary, 9th ed., 2009