The term "United States Agency" generally refers to various governmental organizations that operate under the federal government of the United States. These agencies are responsible for implementing and enforcing laws, regulations, and policies in specific areas such as health, education, and national security. Examples include the Environmental Protection Agency (EPA) and the Federal Bureau of Investigation (FBI). Each agency has its own mission and functions, often guided by legislation passed by Congress. They play a crucial role in managing public resources, protecting citizens' rights, and ensuring the effective delivery of government services across the nation.