The United States Treasury Department’s basic functions are to develop and
propose national and international monetary policies, and to serve as the
financial agent of the government to collect taxes, manage the public debt,
disburse funds, mint coins, and print currency. As part of the executive branch
of government, it is also responsible for enforcing certain laws. Toward that
end, the Treasury Department includes the Bureau of Alcohol, Tobacco, and
Firearms (ATF), the United States Customs Service, the Internal Revenue Service
(IRS), and the Secret Service.