The American Battle Monuments Commission is a small independent agency of the Executive Branch of the federal government. It is responsible for:

• commemorating the services of the American Armed Forces where they have served since April 6, 1917 (the date of U.S. entry into World War I)
• through the establishment of suitable memorial shrines; designing, constructing, operating and maintaining permanent American military burial grounds in foreign countries;
• for controlling the design and construction of U.S. military monuments and markers in foreign countries by other U.S. citizens and organizations, both public and private; and
• encouraging the maintenance of such monuments and markers by their sponsors.

Source: ABMC.gov

The Federal Mine Safety and Health Review Commission is an independent adjudicative agency that provides administrative trial and appellate review of legal disputes arising under the Federal Mine Safety and Health Amendments Act of 1977 (Mine Act). The Department of Labor issues regulations covering health and safety in the nation's mines. Federal mine inspectors employed by the DOL Mine Safety and Health Administration (MSHA) enforce these regulations by issuing citations and orders to mine operators. The Commission is concerned solely with the adjudication of disputes under the Mine Act, including the determination of appropriate penalties. It does not regulate mining or enforce the Mine Act.

The Institute of Museum and Library Services (IMLS) is an independent Federal agency that fosters leadership, innovation, and a lifetime of learning by supporting the nation's museums and libraries. IMLS invests federal funding in museums and libraries to enhance their unique resources and ensure broad community access to these vital educational institutions.

The National Endowment for the Arts (NEA) is the federal agency that supports the visual, literary and performing arts for the benefit of all Americans.

The National Endowment for the Humanities (NEH) is an independent grant-making agency of the United States government dedicated to supporting research, education, and public programs in the humanities.

The National Mediation Board (NMB), established by the 1934 amendments to the Railway Labor Act of 1926, is an independent agency that performs a central role in facilitating harmonious labor-management relations within two of the nation's key transportation modes--the railroads and airlines. Pursuant to the Railway Labor Act, NMB programs provide an integrated dispute resolution process to effectively meet the statutory objective of minimizing work stoppages in the airline and railroad industries.

The Office of Compliance was established to implement and enforce the Congressional Accountability Act of 1995. Known as the CAA, the Act generally extends the rights and protections of 11 employment and labor laws to covered employees in the legislative branch of the federal government.

The U.S. Social Security Administration is an independent agency in the executive branch of the federal government. SSA is headed by a Commissioner and a Deputy Commissioner who are appointed by the President with the advice and consent of the Senate.

Tennessee Valley Authority is the United States' largest producer of power. Also conducts regional development and manages 164 public recreation areas, including Land Between The Lakes, TVA's national recreation and environmental education area. TVA's service area covers 80,000 square miles (200,000 square kilometers) in the southeastern U.S.

Official USPS sites offering information about all aspects of the agency.

The United States Agency for International Development (USAID) is an independent federal government agency that receives overall foreign policy guidance from the Secretary of State. The agency works to support long-term and equitable economic growth and advancing U.S. foreign policy objectives by supporting: economic growth and agricultural development; global health; and, conflict prevention and developmental relief. The USAID provides assistance in four regions of the world: Sub-Saharan Africa; Asia and the Near East; Latin America and the Caribbean, and; Europe and Eurasia.