The Employment Standards Administration (ESA) is the largest agency within the U.S. Department of Labor. The ESA enforces and administers laws governing legally-mandated wages and working conditions, including child labor, minimum wages, overtime and family and medical leave; equal employment opportunity in businesses with federal contracts and subcontracts; workers' compensation for certain employees injured on their jobs; internal union democracy and financial integrity, and union elections, which protect the rights of union members; and other laws and regulations governing employment standards and practices. Wage and Hour is a division of ESA.