Regulatory Assistance - Useful Links & Contacts


With the plethora of information available on the worldwide web, the DTSC Regulatory Assistance Officers rely on an evolving list of useful Web sites to assist them in finding the answers to your questions. In the interest of saving you the time and the sometimes frustrating effort of finding the right Web site, they offer the following addresses. Of course, you are always welcome to talk to a "live person" by calling our Regulatory Assistance hotline (800-72TOXIC) or emailing  

Analytical Methods
SW-846 On-line. Test Methods for Evaluating Solid Waste Physical/Chemical Methods
U.S. EPA Information resource, "Test Methods for Evaluating Solid Waste Physical/Chemical Methods, SW-846."

Business Sectors

Industry Sector Notebooks
The EPA's Office of Compliance has developed a series of profiles or notebooks containing information on selected major industries. These notebooks, which focus on key indicators that holistically present air, water, and land pollutant release data, have been thoroughly reviewed by experts from both inside and outside the EPA.

North American Industry Classification System
U.S. Census Bureau
Replacing the U.S. Standard Industrial Classification (SIC) system. Site lists

RCRA In Focus
Publications with regulatory updates, source reduction information and more. Includes dry cleaning, leather manufacturing, motor freight and railroad transportation, photo processing, printing and vehicle maintenance. PDF files.

Small Business Environmental Home Page
U.S. EPA Small Business Ombudsman (linked)
Information and links, "Helping Small Businesses Access Environmental Compliance and Pollution Prevention Information."


Chemistry Webbook
National Institute of Standards and Technology
This site provides thermochemical, thermophysical, and ion energetics data compiled by NIST under the Standard Reference Data Program.

NIOSH Pocket Guide to Chemical Hazards
Centers for Disease Control
Provides information on NIOSH exposure limits and OSHA permissible exposure limits.

Cleanup Numbers

Preliminary Remediation Goals
U.S. EPA Region 9
On-line and downloadable references to PRGs.


Commercially Permitted PCB Disposal Companies
U.S. EPA (Office of Pollution Prevention and Toxics)
Site has a list of addresses and phone numbers of commercially permitted PCB Companies. Grouped by disposal methods.
Links to PCB Home, OPPT Home and EPA Home

Drinking Water

Drinking Water Standards, Action Levels, and Unregulated Chemicals Requiring Monitoring
California Department of Health Services
Downloadable information on maximum contaminant and action levels.


Index Map of Recent Earthquakes
U.S. Geological Survey
Up-to-date reporting of seismic events, links out.


Yahoo! Society and Culture Environment and Nature Reference Libraries
Yahoo! references on environmental topics, including U.S. EPA library.

Environmental Agencies - State

California Environmental Protection Agency
Access to Cal/EPA Board, Department and Office Web sites.

Department of Toxic Substances Control
Our home page!

Air Resources Board
Board activities, including links to Air Districts.

State Water Resources Control Board
Board activities, including links to Regional Water Quality Control Boards.

Board activities, recycling and reuse, and more.

California Waste Facilities, Sites, & Operations Database. Solid Waste Information System (SWIS) Database
The database itself.

Department of Pesticide Regulation
Department of Pesticide Regulations programs and databases.

Office of Environmental Health Hazard Assessment
Information about the Office's programs, including risk assessment, the REA program, Proposition 65.

Environmental Agencies - Federal

Region 9 (San Francisco)
Information about Region 9 programs.

Access to U.S. EPA databases.

Envirofacts - Facility Information
Implements the Facility Identification Initiative. Access to regulated facility information.

U.S. EPA Superfund Sites
Includes information about Superfund sites, Enviromapper, technologies, CERCLIS database and more.

The Integrated Data for Enforcement Analysis system (IDEA)
A comprehensive single-source of environmental performance on regulated facilities within EPA. Provides information from the agency's air, water, hazardous waste, Toxic Chemical Release Inventory, and Emergency Response Notification

Environmental Databases - State

California Environmental Resources Evaluation System
California Resources Agency
Provides access to a variety of electronic data describing California's environments. Includes natural and cultural resource information from multiple contributors.

California Wildlife Exposure Factor and Toxicity Database
The database itself.

Environmental Health

Agency for Toxic Substances Disease Registry
Centers for Disease Control
Information about the Agency's health assessments, FAQs about the toxicology of chemicals, Hazardous Substance Release/Health Effects Database and more.

Environmental Health Center
National Safety Council
Environmental chemical backgrounders, info on risk management, and more.

California Conference of Directors of Environmental Health (CCDEH)
Information about the organization, links, and more.

Environmental Products

Environmental Yellow Pages
DTSC cannot recommend specific environmental firms or products, so they refer callers to phone books. Thus, one source of listings of environmental services and products from participating companies in Northern California (link to Southern California).

EPA ID Number

EPA Forms 8700-12 and 8700-23
Office of Solid Waste
Notification of Regulated Waste Activity and forms and instructions.

State of California
EPA ID Number Verification Questionnaire (VQ) and EPA ID Number and Manifest Fee Assessment - Frequently Asked Questions.

Government - Local

California CUPA Forum
Information about CUPAs, training, rosters, calendar and more.

CUPA Liaison Hotline
If you are a CUPA and have a question, please call our toll free number at 1-888-988-7058.

California State Association of Counties
Information about and links to counties.

League of California Cities
Provides links to California city Web sites.

Government - State

Your Government
State of California
Access to all state government Web sites.

State of California
Access to the State Assembly, Senators, committees, districts and other related links.

California Senate
Access to the state Senate, its legislative activities, the members and more.

California Assembly
Access to the state Assembly, its legislative activities, the members and more.

Government - Federal

U. S. Senate
Access to Senate legislative activities, the members and more.

U. S. House
Access to House legislative activities, the members and more.



California Department of Public Health

DHS home page. Links to information on lead, medical waste and more.

Health & Safety

California Occupational Safety and Health Agency
Subchapter 7. General Industry Safety Orders
Workplace Safety Regulations.

California Occupational Safety and Health Agency
Workplace Safety Publications
Fact sheets, brochures and other items providing information on workplace health and safety.

California Occupational Safety and Health Agency
Office locations and telephone numbers throughout the state.

Indoor Air

Indoor Air Quality Program, Environmental Health Laboratory Branch
Department of Health Services
Information about the state’s indoor air quality program.

Industrial Hygiene

American Industrial Hygiene Association
Gives links to AIHA sections, agencies, institutions.

American Industrial Hygiene Association

Wastes Allowed For Discharge At Disposal Facilities
State Water Resources Control Board - Chapter 15 Homepage
This page contains updated lists provided by the Regional Water Quality Control Boards
(RWQCBs) of open, commercial Class I, II, and III landfills and the types of wastes accepted at each.

Laws - State

California Health and Safety Code
Index with links ( is the home page). to sections.

Bill Information
Access to bills in the California legislature, both chaptered and not.

California Law
Access to State laws, Constitution and general legislative information.

Laws - Federal

Cornell Law School
Legal Information Institute
Access to federal laws, court decisions and more. Contains full text of codes.

Thomas - Legislative Information on the Internet
Excellent site for federal legislation, Congressional Record, and Congressional committee information, maintained by the Library of Congress.

Environmental Laws Publication
U.S. EPA, Region 5
Reader-friendly abstracts of federal environmental laws.


U.S. EPA Superfund Sites
Includes information about Superfund sites, Enviromapper, technologies, CERCLIS database and more.

National Mapping Information
U.S. Geological Survey
Various mapping on-line services.

Geospatial Data, Information, and Related Products
U.S. Geological Survey
The production of digital cartographic data and graphic maps comprises the largest component of the USGS National Mapping Program (NMP).

Earth Science Information Center
U.S. Geological Survey
Offers nationwide information for USGS map products and earth science publications.

Agency for Toxic Substances and Disease Registry, Atlanta, Georgia
A presentation giving an introduction to geographic information systems for public health protection


Measurements Converter
Plug-in converter.


Medical Waste
Medical Waste Program
Department of Health Services
The Medical Waste Management (Program) permits and inspects Medical Waste Offsite Treatment Facilities and Transfer Stations and oversees Medical Waste Transporters.


Click here for the Assessing Risk section of the DTSC Web site
or go directly to DTSC's CalTOX Spreadsheet Model page.

Cal/Ecotox database
Office of Environmental Health Hazard Assessment Exposure factors and toxicity info for 62 Calif animal species Species Data Base to assist in ecological risk assessment.

Material Safety Data Sheets

University of Vermont
Also includes useful links.

Business Assistance Facts about Air Regulations – How to Read a MSDS
Pacific Northwest Pollution Prevention Resource Center
Part of a larger information resource on pollution prevention, and Clean Air Act compliance fact sheets (for Alaska, Idaho, Oregon and Washington).

Other Useful Links

Interactive Citizen's Handbook
U.S. Information Service
Links to national government entities.

External Links
Office of Environmental Health Hazard Assessment
Cal/EPA Links, including non-U.S.


OregonStateUniversity and U.S. EPA
Information on pesticides, risks, environment, food.

Department of Pesticide Regulation
Department of Pesticide Regulations programs and databases.

Pollution Prevention & Recycling

Bay Area Green Business Program
The Bay Area Green Business Program assists, recognizes and promotes businesses and government agencies that volunteer to operate in a more environmentally responsible way.

BestManufacturingPracticesCenter of Excellence
Office of Naval Research, U.S. Department of Commerce and the University of Maryland at College Park.  Resource to identify and share best manufacturing and business practices being used throughout industry.

Electronics Recycling Initiative
National Recycling Coalition
Information on recycling and reuse of electronics equipment, including computers and cathode tube rays. Also has a database of recyclers.

Illinois Waste Management and Research Center (WMRC)
WMRC services include: research funding, technical assistance, laboratory services and a library on environmental and pollution prevention issues.

Joint Service Pollution Prevention Technical Library
The Joint Service P2 Technical Library is the single comprehensive resource for information on equipment, technologies, and management practices that reduce or eliminate the generation, disposal, and release of pollutants at joint service installations.

Massachusetts Toxics Use Reduction Institute (TURI)
The TURI was created to promote reduction in the use of toxic chemicals and the generation of toxic by-products in industry and commerce in the state of Massachusetts.

National Pollution Prevention Roundtable
The National Pollution Prevention Roundtable provides a national forum for promoting the development, implementation, and evaluation of efforts to avoid, eliminate, or reduce pollution at the source.

North Carolina Division of Pollution Prevention and Environmental Assistance (DPPEA) - Pollution Prevention Pays
DPPEA provides pollution prevention information, resources, and links for industry, small businesses, and local government.

Pacific Northwest Pollution Prevention Resource Center (PPRC)
PPRC provides pollution prevention information, facilitates information exchange, and catalyzes pollution prevention projects.

Pollution Prevention Resource Exchange (P2Rx)
The P2Rx is a consortium of eight regional pollution prevention information centers providing pollution prevention information, networking opportunities and other services to States, local governments and technical assistance providers in their region.

Resource Conservation Challenge (RCC)
The RCC is a U.S. EPA national effort to find flexible, yet protective, ways to conserve our national resources. It challenges everyone to: Prevent pollution and promote recycling and reuse of materials; Reduce the use of toxic chemicals; and Conserve energy and materials.

San Diego Area Green Business Program
A cooperative regional effort that proactively assists businesses to come into full compliance with environmental regulations and encourages businesses to take extra steps towards pollution prevention and resource conservation.

Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP)
The SCVURPPP concentrates its efforts on identifying pollution sources and implementing pollution prevention measures that are within the authority and ability of its Co-permittees.

The Story of Stuff
The Story of Stuff is a 20-minute, fast-paced, fact-filled look at the underside of our production and consumption patterns.

U.S. Environmental Protection Agency - Pollution Prevention
U.S. EPA provides general information about P2 practices, describes the array of P2 programs and initiatives administered by EPA and other organizations, and provides contacts for further information.

The U.S. Green Building Council (USGBC)
The USGBC provides resources and information on green building tools to promote green building construction.

Used Drum Recycling
RIPA (Reusable Industrial Packaging Association)
Site contains links to conditioners, container manufacturers.

Used Oil Filter Recycling
Filter Manufacturers Council
Site contains information regarding state regulations and companies that transport, process and recycle used oil filters.

Western Region Pollution Prevention Network (WRPPN)
WRPPN is an interactive information exchange network designed to bring you up-to-date information on Pollution Prevention/Source Reduction.

Proposition 65

Proposition 65 List
Office of Environmental Health Hazard Assessment
The list of chemicals known to the state to cause cancer or reproductive toxicity. PDF file.

Regulations - State

California Code of Regulations
A cumbersome site. Look for Title 22, Division 4.5, or search on the section number. CUPA regulations are in Title 27.

Regulations - Federal

National Archives and Records Administration
Access to the Code of Federal Regulations and the Federal Register, and more.

Solid Waste

Local Enforcement Agency Directory
Integrated Waste Management Board
Local enforcement agency directory.

California Waste Facilities, Sites, & Operations Database. Solid Waste Information System (SWIS) Database
California Integrated Waste Management Board
The database itself.


Institute for Environmental Toxicology at MichiganStateUniversity:
Has reader-friendly references for toxicology for the public and for journalists.


Office of Hazardous Materials Safety
U.S. Department of Transportation
Information about the national safety program for the transportation of hazardous materials by air, rail, highway and water.

The Office of Hazardous Materials Safety
U.S. Department of Transportation
Links and FAQ's regarding hazardous materials regulations

National Hazardous Materials Route Registry
Federal Motor Carrier Safety Administration
Contains the national repository of both non-radioactive hazardous materials and radioactive routes which are either designated for the hazmat transportation or restricted from use by hazmat carriers.

Office of Hazardous Materials Safety
U.S. Department of Transportation
Requirements for classification, packaging, hazard communication, incident reporting, handling and transportation of hazardous materials.

Underground Tanks

Local Underground Storage Tank Agencies
State Water Resources Control Board
Local Underground Storage Tank Agencies.