Author/Creator
- United States400
- U.S. Consumer Product Safety Commission278
- United States. Occupational Safety and Health Administration125
- U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation110
- National Institute for Occupational Safety and Health107
- U.S. Nuclear Regulatory Commission107
- United States. Federal Aviation Administration93
- United States. National Highway Traffic Safety Administration86
- United States. Coast Guard57
- United States. General Accounting Office47
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation44
- United States. National Aeronautics and Space Administration36
- U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research35
- United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation34
- United States. Federal Emergency Management Agency34
- United States. Congress. House. Committee on Government Operations. Government Activities and Transportation Subcommittee31
- U.S. Atomic Energy Commission30
- United States. Congress. Senate. Committee on Commerce, Science, and Transportation29
- United States. Bureau of Mines28
- United States. Mine Safety and Health Administration28