Nuclear Regulatory Commission

• NRC Documents - http://www.nrc.gov/reading-rm/doc-collections/
• NMSS/FSME Quarterly Newsletters - http://www.nrc.gov/reading-rm/doc-collections/nuregs/brochures

Department of Transportation

• Pipeline and Hazardous Materials Safety Administration - http://www.phmsa.dot.gov/
• FMCSA - http://www.fmcsa.dot.gov/

Department of Energy

• http://www.energy.gov/
• http://www.cvsa.org/
• Directives, Regulations, and Standards - http://www.directives.doe.gov/
• Radioactive Material Packaging and References - http://rampac.energy.gov/
• Source Recovery, and Special Form and Packaging Certificates - http://osrp.lanl.gov/
• Energy Statistics and Information - Homepage - U.S. Energy Information Administration (EIA)

Environmental Protection Agency

• http://www.epa.gov/
• Land, Waste, and Cleanup Topics - Land, Waste, and Cleanup Topics | US EPA

International

• International Air Transport Association (IATA) DGR - http://www.iata.org/publications/dgr/Pages/index.aspx
• International Civil Aviation Organization (ICAO) - http://icao.int/
• FedEx Shippers Declaration Forms - http://www.fedex.com/us/
• Transport Canada - http://www.tc.gc.ca
• International Atomic Energy Agency (IAEA) - http://www.iaea.org/index.html
• International Maritime Organization (IMDG) - http://www.imo.org/
• UN Model Regulations - http://www.unece.org/trans/danger/publi/unrec/rev13/13nature_e.html

General

• Federal Register Online - https://www.federalregister.gov/
• MSDS - http://hazard.com/msds/
• NIOSH Pocket Guide to Chemical Hazards - http://www.cdc.gov/niosh/npg/
• Nuclear Calculations - http://www.radprocalculator.com/
• The Radiation Information Network/Idaho State University - ISU Health Physics Radinf (google.com)
• Unit Conversions, Free Online Unit Converters - http://unitconversion.org/