Final answer:
The official reference handbook of the Federal Government provides comprehensive information on the agencies of all three branches: the legislative, executive, and judicial.
Step-by-step explanation:
The reference handbook of the Federal Government provides comprehensive information on all of the agencies of the legislative, executive, and judicial branches. Agencies within the legislative branch include the General Accounting Office, the Government Printing Office, and the Library of Congress. The legislative branch, outlined in Article I of the Constitution, is responsible for making laws and is served by these agencies which aid in research, fiscal accountability, and the distribution of government publications.
The executive branch includes Cabinet-level departments, independent agencies, and various subunits, such as the Department of Defense and the Department of State, with over two million civilian federal employees across the globe. This branch enforces laws, and its wide array of departments plays a role in shaping legislative proposals. Additionally, the executive branch implements laws through administrative regulations issued by various agencies.
The judicial branch, outlined in Article III of the Constitution, interprets laws and includes multiple levels of federal courts, ultimately led by the Supreme Court. Each branch plays a distinct and critical role within the framework of the U.S. Government, and the official handbook provides information on the structure, functions, and agencies of all three branches.