http://www.epa.gov/enviro/html/emci/chemref/index.html
Search the Envirofacts Warehouse Master Chemical Integrator Chemical References Web Pages.   A listing of chemicals that are monitored by
EPA's Major Program Systems: Air (AFS), Water (PCS), Hazardous Waste (RCRIS), Superfund (CERCLIS) and Toxics Release Inventory (TRIS).

http://MSDS.PDC.CORNELL.EDU/issearch/msdssrch.htm
The 325,000 MSDS files contained in this database are derived from :
the CD-ROM version of the U.S. Government Department of Defense MSDS database.

http://hazard.com/msds/index.html
The Vermont SIRI Material Safety Data Sheet (MSDS) collection.  To search for an MSDS enter whole or partial words, numbers, or strings in the company or product name, CAS, or NSN (grep).

http://www.chemtelinc.com/
CHEM-TEL, INC. is a 24-hour DOT, OSHA, IATA, ICAO, HAZMAT COMPLIANT Emergency Response Phone Service providing MSDS database maintenance, MSDS internet services, MSDS writing, MSDS translations, MSDS upon Demand, customized disaster based coordination, and a variety of customized telephone/reporting based services.

http://www.boc.com/gases/msds_us/
U. S. Material Safety Data Sheets.  Now the MSDS sheets are in PDF format. Acrobat provides a high level of graphic richness and can be
easily printed out and kept for future reference.

http://www.camd.lsu.edu/msds/Chemical-index.html
Chemical File Index.  The CAMD MSDS Management System.

http://www.msdssearch.com/
Free access to over 750,000 Material Safety Data Sheets. We are dedicated to providing you the most comprehensive single
source of information related to the document known as a Material
Safety Data Sheet (MSDS). MSDS SEARCH is the conduit between
users of MSDSs and any reliable supplier. We currently provide
access to 125K MSDSs from over 800 manufacturers, 625K MSDSs
from public access databases, links to MSDS software, service,
training and product providers, links to Government MSDS
information, an MSD

http://hazmat.dot.gov/gydebook.htm
A guide for emergency services personnel at transportation incidents involving hazardous materials.

http://www.cdc.gov/niosh/npg/pgdstart.html
NIOSH Pocket Guide to Chemical Hazards—ONLINE VERSION

http://www.apgea.army.mil/RDA/erdec/risk/safety/msds/index.html
The U.S. Army's Edgewood Chemical Biological Center Safety Office has combined the talents of Safety Professionals with military chemical agent, biological, radiation, and explosive/pyrotechnics to
form a team of highly motivated individuals committed to furthering occupational health and safety.

http://209.207.178.35/RSSGuide.htm
Agency for Toxic Substances and Disease Registry.  ATSDR ToxFAQs is a series of summaries about hazardous substances being developed by the ATSDR Division of Toxicology. Information for this series is excerpted from the ATSDR Toxicological Profiles and Public Health Statements. Each fact sheet serves as a quick and easy to understand guide. Answers are provided to the most frequently asked questions (FAQs) about exposure to hazardous substances found around
hazardous waste sites and the effects of exposure on human health.

http://209.207.178.35/RSSGuide.htm
Hazardous properties of materials: physical hazards, such as flammability and corrosivity; toxic effects such as carcinogenicity, toxicity, and target organ information; and regulatory listing requirements. Also included are STORAGE groups for compatible segregation of chemicals. Most chemicals in use at Stanford have been
classified by this system at least once. Please note that information in this database is updated only once or twice a year; this is offered as a service to the general community.

http://www.pcema.com/iemergency.html
How to protect yourself and family in dangerous CHEMICAL emergencies.   A nice site to preplan just in case.

http://www.pcema.com/e-quake.html  
Prepare yourself and family for earthquakes

http://www.hazmatmag.com/
Hazardous Materials Management Magazine.  North America's Publication of Pollution Prevention and Control.

http://www.pcema.com/index.html
Many cool links covering hurricanes to terrorism.

http://www.customservice.com/hazmat.html
This site is an online catogue to purchase HAZMAT equipment and supplies.  Full range of products and industrial equipment for the handling of toxic, and hazardous materials.

http://rip.physics.unk.edu/hazmat/Table.html
Specific Hazardous Materials and Associated Handling Practices.  Includes The Hazardous Materials (HazMat) Manual which is an integral part of the Injury and Illness Prevention Plan (Workplace Safety Plan) at the University of Nebraska at Kearney (UNK).

http://hazmat.dot.gov/hazhome.htm
DOT's Office of Hazardous Materials Safety

http://209.207.178.35/RSSGuide.htm
This page provides information, Material Safety Data Sheets (MSDS's) links, downloads and executable programs for hazardous materials, chemicals, petroleum products, etc.  DOT - Transportation regulations for hazardous materials -regulations to download for free, guidance manuals, links, FAQs from Environmental Health & Safety Online.

http://www.fra.dot.gov/o/safety/hazmat/shtln1/shtlnslides/
The Transportation of Hazardous Materials By Rail: A Regulatory Update for Transportation of Hazardous Materials by Rail

http://hazmat.dot.gov/whoweare.htm
The Office of Hazardous Materials Safety.