Mine Safety and Health Administration

About The U.S. Department of Labor's Mine Safety and Health Administration (MSHA) is dedicated to reducing deaths, injuries, and illnesses in the nation's mines through a variety of activities and programs. The agency develops and enforces safety and health rules for all mines under U.S. jurisdiction, including those in Puerto Rico, the U.S. Virgin Islands, and Pacific territories such as American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands (CNMI). MSHA provides technical, educational, and other types of assistance to mine operators and works cooperatively with industry, labor, and other federal and state agencies to improve safety and health conditions for all miners throughout the United States and its territories. Mission Learn about MSHA’s role in promoting mine safety and health in the United States, Puerto Rico, the U.S. Virgin Islands, and its Pacific territories, and see how the mining industry has made significant strides in reducing mining fatalities during the 20th century.