Justice, rational-legal, economic, and conflict models of regulation are described; the pervasiveness of regulation and its targets are considered. The structure of regulatory bureaucracies is discussed, and the rulemaking, administrative, and adjudicatory functions of regulatory agencies are delineated. The politics of regulatory rulemaking are discussed and illustrated in cases involving the Federal Trade Commission, the Civil Aeronautics Board, and the Environmental Protection Agency. The investigatory process in economic and social regulation violations is described, as are the special investigative powers of regulatory agencies. Enforcement is discussed with reference to administrative and judicial remedies and penalties and tools for persuading voluntary compliance. Finally, the conflict between industry influence and the public interest is discussed, and directions for regulatory reform are outlined. Chapter notes, references, and index.