Federal Government Agencies
- RRB Railroad Retirement Board
- NTSB National Transportation Safety Board
- OSHA Occupational Safety and Health Administration
- FRA Federal Railroad Administration
- AAR Association of American Railroads
- DOL US Department of Labor
- NLRB National Labor Relations Board
- STB Surface Transportation Board
- CFR Part49 Code of Federal Regulations
- US Code United States Code Title 45 - Railroads
- DOT US Department of Transportation
Arizona State Government Agencies
- Arizona State of Arizona
- AZCC Arizona Corporation Commission
- ADOSH Arizona Division of Occupational Safety and Health
- ADOT Arizona Department of Transportation
California State Government Agencies
- California State of California
- PUC California Public Utilities Commission
- Cal/OSHA California Division of Occupational Safety and Health
- CalTrans California Department of Transportation