The administrative law, which is also known as the body of law governing the activities of administrative agencies of government work for us in different sections. Due to their efforts, numerous environmental and economic changes have came in the existence. When this body of law which is also considered as a branch of public law, is not working regularly, it can upset the balance is certain areas like police law, manufacturing, international trade, taxation, environmental, immigration, broadcasting and transportation. The main work of administrative law is to enforce the specific regulatory agenda.
Under the new deal legislative plan, several statutes that created new federal agencies to support the US from the economic decline of the great depression. During this time, the opponents to the New deal were concerned with the nation allowing extensive government, dragging the US into a situation of having a possible dictatorship. By 1946, after the ten years of detailed study of administrative regulation, the birth of law taken place from administrative procedure.
For providing constitutional safety, the APA develops an outline to different regulating agencies and their work. The main purposes of the APA are-
1- To urge agencies for keeping the public informed about their organization, rules and procedures. 2- To urge people for giving their participation in the process of rule making. Another important purpose of  Administrative Procedure Act is to develop and establish uniform standards for the free flow conduction of formal rulemaking and adjudication. In the last but not the least. to define the scope of judicial review.