United States Department of Labor (DOL) Challenge Coin. This is a great looking United States Department of Labor (DOL) challenge coin. Coin has reeded edges and is about 1 9/16" in diameter. All details are raised lettering and gold plated. Coin is contained in an acrylic airtight holder. The United States Department of Labor is a cabinet-level department of the U S federal government responsible for occupational safety, wage and hour standards, unemployment insurance benefits, reemployment services, and some economic statistics; many U S states also have such departments. The department is headed by the U S Secretary of Labor. The purpose of the Department of Labor is to foster, promote, and develop the welfare of the wage earners, job seekers, and retirees of the United States; improve working conditions; advance opportunities for profitable employment; and assure work-related benefits and rights. In carrying out this mission, the Department of Labor administers and enforces more than 180 federal laws and thousands of federal regulations. These mandates and the regulations that implement them cover many workplace activities for about 10 million employers and 125 million workers. The Department?s headquarters is housed in the Frances Perkins Building, named in honor of Frances Perkins, the Secretary of Labor from 1933 to 1945 and the first female cabinet secretary in U.S. history.