• Code of Federal Regulations - www.gpoaccess.gov/cfr • Federal Register - www.gpoaccess.gov/fr • National Institute of Occupational Health & Safety - www.cdc.gov/niosh • National Oceanic & Atmospheric Administration - www.noaa.gov • Occupational Safety & Health Administration - www.osha.gov • U.S. Department of Transportation - www.dot.gov • U.S Environmental Protection Agency - www.epa.gov - Region 9 (AZ, CA, NV, HI) - www.epa.gov/region09 - Region 10 (AK, ID, OR, WA) - www.epa.gov/region10 - Integrated Risk Information System (IRIS) - www.epa.gov/iris/ • U.S. Geological Survey - www.usgs.gov