Online and Computerized Resources

Registry of Toxic Effects of Chemical Substances (RTECS)
The RTECS Database is available through several commercial services who have lease agreements with the National Technical Information Service. Contact the following organizations for more information:

Canadian Centre for Occupational Health and Safety
250 Main Street East
Hamilton Ontario
Phone: 905-570-8094
Toll free: 1-800-668-4284 (U.S. and
Canada only)
FAX: 905-572-2206
Offers RTECS on CD-ROM

STN International
c/o CAS
P.O. Box 3012
Columbus, OH 43210
Phone: 614-447-3600
Toll free: 1-800-848-6538
FAX: 614-447-3751
Offers RTECS online

Dialog Corporation
11000 Regency Parkway
Suite 10
Cary, NC 27511
Phone: 916-462-8600
Toll Free: 1-800-334-2564
Fax :916-468-9890

Deutsches Institut fuer Medizinische
Dokumentation Und Information/DIMDI
Waisenhausgasse 36-38a
Koeln, Germany
Phone: (+49) 221 47 24 1
FAX: (+49) 221 47 24 444
Offers RTECS on-line

6200 South Syracuse Way, Suite 300
Greenwood Village, CO 80111-4740
Phone: 303-486-6400
Toll free: 1-800-525-9083
FAX: 303-486-6464
Offers RTECS on CD-ROM (Tomes Plus)

National Library of Medicine
8600 Rockville Pike
Bethesda, MD 20894
Phone: 301-594-5983
Toll free: 1-888-346-3656
FAX: 301-480-3537
Offers RTECS online on (TOXNET)

SilverPlatter Information, Inc.
100 River Ridge Dr.
Norwood, MA 02062-5026
Phone: 781-769-2599
Toll free: 1-800-343-0064
FAX: 781-769-8763

The Registry of Toxic Effects of Chemical Substances (RTECS) is a comprehensive database of basic toxicity information for over 100,000 chemical substances including: prescription and non-prescription drugs, food additives, pesticides, fungicides, herbicides, solvents, diluents, chemical wastes, reaction products of chemical waste, and substances used in both industrial and household situations. Reports of the toxic effects of each compound are cited. In addition to toxic effects and general toxicology reviews, data on skin and/or eye irritation, mutation, reproductive consequences and tumorigenicity are provided. United States standards and regulations, NIOSH recommended exposure limits and information on the activities of the EPA, NIOSH, NTP, and OSHA regarding the substance are also included. The toxic effects are linked to literature citations from both published and unpublished governmental reports, and published articles from the scientific literature. Toxicity information appearing in RTECS is derived from reports of acute, chronic, lethal and non-lethal effects of chemical substances. The reviewed information from the scientific literature and published governmental reports plus unpublished test data from the EPA TSCA test submissions database (TSCATS) are included in the file.

TOMES Plus® (Toxicology, Occupational Medicine & Environmental Series Plus)
Available from Micromedex, Inc. at 800 525-9083

The TOMES Plus® System offers an extensive collection of 15 proprietary and licensed databases expertly assembled to provide quick, easy access to medical, hazard, and environmental information vital to the safe management and handling of chemicals.

The TOMES Plus® System offers rapid, easy access to medical, regulatory, and hazard information needed for safe management of chemicals in the workplace and the environment. Its vast array of references includes government as well as proprietary databases available only from Micromedex.

The following databases are contained within TOMES Plus®:

  • MEDITEXT® Medical Managements
  • HAZARDTEXT® Hazard Managements
  • INFOTEXT® Documents
  • HSDB from the U.S. National Library of Medicine
  • CHRIS from the U.S. Coast Guard
  • OHMTADS from the USEPA
  • IRIS from the USEPA
  • RTECS from NIOSH
  • 1996 North American Emergency Response Guidebook (NAERG)
  • NIOSH Pocket Guide
  • New Jersey Fact Sheets from the N.J. Department of Health
  • REPRORISK® System
  • REPROTEXT® Reproductive Hazard Reference
  • REPROTOX® Reproductive Hazard Reference
  • Shepard's Catalog of Teratogenic Agents
  • TERIS - Teratogen Information System


California State Codes
California State Codes, including the Health and Safety Code, are available for review and search on this site.

California Regulations
California Code of Regulations, including the waste classification regulations contained in Chapter 11, Division 4.5, Title 22, California Code of Regulations.

California Bills
Pending legislation before the California Assembly or Senate are available at this location.

Federal Codes
United States Codes, including Title 42, U.S.C., are available for review and search on this site.

Federal Regulations
The Code of Federal Regulations, including 40 CFR, are available on this site.

Federal Register
The Federal Registers, from October, 1994 until present, are available on this site.

Federal Legislation on the Internet
Information concerning the major bills and amendments currently before Congress by topic, title, bill number or by those enacted into law.

National Institute of Ecology (Mexico)
The National Institute of Ecologla (INE), participates in the design of general ecological policy and the application of its diverse instruments of regulation and environmental management. The site includes information regarding the identification and management of hazardous wastes and provides a link to the Mexican Regulations identifying hazardous wastes in the United Mexican States (Mexico). Further links discuss the Pollution Prevention programs in Mexico and information regarding governmental and private resources to be accessed for the classification and management of hazardous wastes.

U.S. EPA Office of Solid Waste and Emergency Response

USEPA posts many documents on its WWW server. The Office of Solid Waste and Emergency Response has many resources and links for waste testing, identification, and management. The Office of Solid Waste and Emergency Response also maintains a database which summarized regulatory interpretations made since 1980 at

ChemFinder On-Line Chemical Information
CambridgeSoft Corporation

CambridgeSoft Corporation, formerly Cambridge Scientific Computing, develops, markets and supports high quality internet software applications for chemists and engineers. One of these products, ChemFinder, is an internet search engine designed to access only those sites providing technical information about the substance. Because the ChemFinder WebServer is a chemical database, it can also provide information that a general-purpose search engine cannot, including physical property data and 2D chemical structures.

SW-846 Online: Test Methods for Evaluating Solid Waste (Physical/Chemical Methods)

SW-846 contains over 200 documents, including the Table of Contents, Disclaimer, Preface, Chapters One through Thirteen, and many different methods for the sampling and analysis of wastes. All of the documents found in the Third Edition of SW-846, as updated by Updates I, II, IIA, IIB, III and IIIA, are located at this site.

Chemical Health and Safety Data
National Toxicology Program - National Institute of Health

This web page provides Health and Safety information collected on over 2000 chemicals studied by the NTP. Entries for a particular chemical contain chemical identifiers (such as synonyms),physical and chemical information, toxicological data, regulatory information, handling procedures, emergency procedures, and a list of sources for further data on the chemical.

North American Emergency Response Guidebook
United States Department of Transportation - Transport Canada - Secretariat of Commerce and Transportation of Mexico

The North American Emergency Response Guidebook (NAER) was developed jointly by the US Department of Transportation (DOT), Transport Canada (TC), and the Secretariat of Communications and Transportation of Mexico (SCT) for use by firefighters, police, and other emergency services personnel who may be the first to arrive at the scene of a transportation incident involving a hazardous material. It is primarily a guide to aid first responders in:

    • Quickly identifying the specific or generic classification of the material(s) involved in the incident, and;
    • Protecting themselves and the general public during this initial response phase of the incident. However, it also contains useful information to persons classifying hazardous waste because of its data regarding the physical and chemical characteristics which can generally be used for information when determining if a waste meets the characteristics of ignitability, corrosivity, or reactivity.


The NAERG is updated every three years to accommodate new products and technology.

NIOSH Pocket Guide to Chemical Hazards
National Institute of Occupational Safety and Health

The NIOSH Pocket Guide to Chemical Hazards is intended as a source of general industrial hygiene information for workers, employers, and occupational health professionals. The Pocket Guide presents key information and data in abbreviated tabular form for 677 chemicals or substance groupings (e.g., manganese compounds, tellurium compounds, inorganic tin compounds, etc.) that are found in the work environment. The industrial hygiene information found in the Pocket Guide should help users recognize and control occupational chemical hazards. The chemicals or substances contained in the current revision include all substances for which NIOSH has recommended exposure limits (RELs) and those with permissible exposure limits (PELs) as found in the Occupational Safety and Health Administration (OSHA) General Industry Air Contaminants Standard (29 CFR 1910.1000). For waste classification purposed, the Pocket Guide is most useful as a tool to determine if a chemical substance possesses acute oral, dermal, or inhalation toxicity.

Environmental Health and Safety Manager (EHS) Internet Library
Safety Management Corporation

Safety Management Corporation has provided an excellent internet library containing links to various governmental, university, and private-industry sources containing information useful when classifying hazardous wastes. The following links are indexed in the library:

    • A comprehensive listing of MSDS repositories and chemical information;
    • A listing of OSHA, EPA, and DOT regulations and helpful compliance information;
    • A complete listing of U.S. State and federal government webs sites concerning the topic of environmental health and safety management;
    • A listing of non-U.S. government environmental health and safety departments, and;
    • A listing of on-line training programs.


Material Safety Data Sheets for the Agricultural Industry
Automatic Rain Company

A library of over 1,400 material safety data sheets for pesticides, fungicides, and herbicides.

List of Material Safety Data Sheet Resources on the Internet Interactive Learning Paradigms Incorporated

This site maintains links to various internet-based material safety data sheet resources indexed (in order) by:

    • General sites;
    • Governmental agencies;
    • Chemical Manufacturers and suppliers, and;
    • Miscellaneous sites.


Computer-Aided Management of Emergency Operations (CAMEO®) Online
U.S. Environmental Protection Agency, Chemical Emergency Preparedness and Prevention Office and the National Oceanic and Atmospheric Administration

CAMEO® is a system of software applications used widely to plan for and respond to chemical emergencies. It is one of the tools developed by EPA's Chemical Emergency Preparedness and Prevention Office (CEPPO) and the National Oceanic and Atmospheric Administration (NOAA) to assist front-line chemical emergency planners and responders. They can use CAMEO to access, store, and evaluate information critical for developing emergency plans. In addition, CAMEO supports regulatory compliance by helping users meet the chemical inventory reporting requirements of the Emergency Planning and Community Right-to-Know Act (EPCRA, also known as SARA Title III). CAMEO also can be used with a separate software application called LandView™ III to display EPA environmental databases and demographic/economic information to support analysis of environmental justice issues.

The CAMEO system integrates a database containing 4,300 chemicals and a method to manage the data, an air dispersion model, and a mapping capability. All modules work interactively to share and display critical information in a timely fashion. The system is particularly useful to characterize the applicability of the acute inhalation toxicity criteria which is an identifier of a hazardous waste. The CAMEO system is available in Macintosh, Windows, and DOS formats.

Chemical Reactivity Worksheet
National Oceanic and Atmospheric Administration (search for "chemical reactivity worksheet")

The Chemical Reactivity Worksheet is software that you use to find out about the potential reactivity of substances and mixtures of substances. To use the Worksheet, you select chemicals from its database, and add them to a "mixture." The Worksheet then predicts the reactivity of this mixture. (There are 4,300 chemicals in the database; these are the same ones that you'll find in the CAMEO chemical database.)

Recommendations for Chemical Protective Clothing
National Institute for Occupational Safety and Health

There are many chemicals which can cause adverse effects on unprotected skin ranging from contact dermatitis to permeation of the skin and systemic toxic effects. In addition, some chemicals (mostly solids) can present a contamination problem where inadvertent ingestion (e.g., lead) could occur or re-entrainment in the air stream (e.g., asbestos) could lead to inhalation. Chemical protective clothing (CPC), comprising gloves, boots, suits and other related components, can prevent direct skin contact and contamination.

CPC can also prevent physical injury to the unprotected skin from thermal hazards such as from rapidly evaporating liquefied gases freezing the skin (e.g., LPG).

This site provides CPC recommendations for the chemicals listed in the NIOSH Pocket Guide to Chemical Hazards. For waste classification purposes, the information contained on this site is most useful to classify a waste according to the characteristic of acute dermal toxicity.

Chemical Abstracts Service Substance Count
Chemical Abstracts Service

If you have ever wondered how many chemicals there are registered with the Chemical Abstracts Service (CAS), this site will provide you with an up-to-the minute tally of the number of chemicals in the world. As of December 10, 1999, there are 16,434,909 organic and inorganic substances and 5,871,075 sequences of substances registered for a total of 22,305,984 chemical substance registrations.

This site also provides information on the following CAS databases (data current as of December 10, 1999):

    • CASREACT - WHICH PROVIDES INFORMATION ON 3,690,308 chemical reactions
    • CHEMLIST -which lists 22,345 inventoried and regulated substances;
    • CHEMCATS -which lists the 609,455 commercially-available chemicals, and;
    • MARPAT -which contains the keys to prophetic and generic substances in patents for 399,878 searchable Markush structures.


U.S. Environmental Protection Agency

The ECOTOXicology database is a source for locating single chemical toxicity data for aquatic life, terrestrial plants and wildlife. ECOTOX integrates three U.S. EPA, Office of Research and Development (ORD), National Health and Environmental Effects Research Laboratory (NHEERL), Mid-Continent Ecology Division, toxicology effects databases; AQUIRE (aquatic life), PHYTOTOX (terrestrial plants), and TERRETOX (terrestrial wildlife). ECOTOX is currently the premium source for information related to the acute aquatic toxicity of chemicals.

Chemical Hazard Response Information System (CHRIS) Online
United States Coast Guard

The CHRIS database is not yet online, but this site will provide a link when is becomes available. CHRIS is an excellent source for acute aquatic toxicity data.

Chemical Hazard Labels
National Fire Protection Association

The National Fire Protection Association (NFPA) has developed a system for indicating the health, flammability and reactivity hazards of chemicals. This site will provide the labeling information necessary for the chemicals in the site's database and will allow the user to understand what the hazards of a chemical are by information contained on the chemical's label. It is a useful site for determining the characteristics of acute oral, dermal, and inhalation toxicity, as well as for the characteristics of corrosivity, ignitability and reactivity.

Microsoft, Inc.

Terraserver is a digital imaging service from which the user can access a satellite image of many locations in the United States, Northern Mexico, and Western Europe. The picture can be magnified to provide a resolution of as little as 1 meter. This site is useful to determine the areas at a facility most isolated from sensitive populations and for facility siting purposes.

Hazardous Chemical Database
University of Akron, Department of Chemistry

This database will allow the user to retrieve information for any hazardous chemicals contained in the database determined by a keyword search. Potential keywords include names, formula and registry numbers (CAS, DOT, RTECS and EPA).

Mercury Lamp Disposal