Names
- United States. Black Lung Benefits Act of 19721
- United States. Black Lung Benefits Reform Act of 19776
- United States. Bureau of Mines11
- United States. Bureau of Mines. Metallurgical Division3
- United States. Congress4
- United States. Congress. House.1
- United States. Congress. House. Committee on Education and Labor2
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mines and Mining1
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mining and Natural Resources5
- United States. Congress. House. Committee on Rules1
- United States. Congress. House. Committee on Ways and Means3
- United States. Congress. Senate2
- United States. Congress. Senate. Committee on Interstate Commerce.1
- United States. Congress. Senate. Special Committee Investigating the National Defense Program28
- United States. Department of Agriculture1
- United States. Department of Health, Education, and Welfare1
- United States. Department of Housing and Urban Development. Office of Departmental Equal Employment Opportunity1
- United States. Department of Labor24
- United States. Department of the Air Force1
- United States. Department of the Interior1
