Administrative Procedures Act

The federal Administrative Procedure Act (APA) of 1946 governs the way in which administrative agencies of the United States federal government may propose and establish regulations. The APA also sets up a process for federal courts to directly review agency decisions. As such, it is an important source of authority within federal American administrative law. The APA applies to both independent agencies and executive department agencies, and their subdivisions. U.S. Senator Pat McCarran called the APA "a bill of rights for the hundreds of thousands of Americans whose affairs are controlled or regulated" by federal  government agencies. The text of the APA can be found under Title 5 of the United States Code, beginning at Section 500.
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A law that spells out procedures and requirements related to the promulgation of regulations.