The 1946 legislative reorganization act requires that each bill introduced in congress be referred to the proper committee. so an agriculture bill introduced int eh senate must be assigned to the senate agriculture committee, a bill dealing with foreign affairs must be sent to the senate foreign relations committee, and so on

I believe the answer is: The Legislative Reorganization Act of 1946

The  Legislative Reorganization Act of 1946 was made as a response from the impact that western nations felt following the world war II and the Great Depression. The purpose of this act is to ensure that every bill that passed should at least fulfill the criteria of the available budget and controlled domestic impact.