California Department of Pesticide Regulation
Environmental Protection Agency (US)
European Commission - Environment - Chemicals
Food and Agricultural Organization - Pesticides
Organization for Economic Cooperation and Development (OECD) - Pesticides & Biocides (click here for links to OECD Country Sites)
Pesticide Reduction Initiative (Washington State)
Pesticide Reduction Program - City of Seattle
Pesticides Safety Directorate (UK)
National Pesticide Information Center (US)
Stockholm Convention on Persistent Organic Pollutants
United Nations Environment Programme (UNEP) Chemicals Programme
World Health Organization Pesticide Evaluation Scheme (WHOPES)