The United States Post Office Department (USPOD; also known as the Post Office or U.S. Mail) was the predecessor of the United States Postal Service, in the form of a Cabinet department, officially from 1872 to 1971. It was headed by the postmaster general.. The Postal Service Act, signed by U.S. president George Washington on February 20, 1792, established …

The United States Department of the Interior (DOI) is one of the executive departments of the U.S. federal government headquartered at the Main Interior Building, located at 1849 C Street NW in Washington, D.C. It is responsible for the management and conservation of most federal lands and natural resources, and the administration of programs relating to Native Americans, Alaska …

The United States secretary of state is a member of the executive branch of the federal government of the United States and the head of the U.S. Department of State.The office holder is one of the highest ranking members of the president's Cabinet, and ranks the first in the U.S. presidential line of succession among Cabinet secretaries.. Created in 1789 with Thomas …

Responsibilities. The Department of the Navy (DoN) consists of two Uniformed Services: the United States Navy and the United States Marine Corps. The secretary of the Navy is responsible for, and has statutory authority (10 U.S.C. § 5013) to "conduct all the affairs of the Department of the Navy", i.e. as its chief executive officer, subject to the limits of the law, and …

The United States secretary of the interior is the head of the United States Department of the Interior.The secretary and the Department of the Interior are responsible for the management and conservation of most federal land along with natural resources, leading such agencies as the Bureau of Land Management, the United States Geological Survey, Bureau of Indian Affairs …

Federal law enforcement in the United States is more than two hundred years old. For example, the Postal Inspection Service can trace its origins back to 1772, while the U.S. Marshals Service dates to 1789.. Other agencies, such as the FBI are relatively recent, being founded in the early twentieth century. Other agencies have been reformed, such as the ATF which was …

The President of the United States is, according to the Constitution, the Commander-in-Chief of the U.S. Armed Forces and Chief Executive of the Federal Government. The Secretary of Defense is the "Principal Assistant to the President in all matters relating to the Department of Defense", and is vested with statutory authority (10 U.S.C. § 113) to lead the Department and …

The surgeon general of the United States is the operational head of the United States Public Health Service Commissioned Corps (PHSCC) and thus the leading spokesperson on matters of public health in the federal government of the United States.The Surgeon General's office and staff are known as the Office of the Surgeon General (OSG), which is housed within the Office …

The secretary of war was a member of the U.S. president's Cabinet, beginning with George Washington's administration.A similar position, called either "Secretary at War" or "Secretary of War", had been appointed to serve the Congress of the Confederation under the Articles of Confederation between 1781 and 1789. Benjamin Lincoln and later Henry Knox held the position.

The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government.It is headed by the secretary of transportation, who reports directly to the President of the United States and is a member of the president's Cabinet.. The department's mission is "to develop and coordinate policies that will provide an efficient …