The Science and Environmental Health Network (SEHN) advocates the wise application of science to protect the environment and public health. SEHN serves as both a network and think tank for the environmental movement. Check out their collection of precautionary principle essays, reviews, and examples of national and international implementation.

The Center for Health, Environment, and Justice: Be Safe Campaign is a nationwide initiative to build support for the precautionary approach to prevent pollution and environmental destruction before it happens. Check out their list of international, federal, and state precautionary-based laws, policies and agreements.

The Massachusetts Toxics Use Reduction Institute promotes reduction in the use of toxic chemicals and generation of toxic by-products in industry and commerce in the state of Massachusetts.

The Collaborative on Health and the Environment (CHE) tracks emerging scientific evidence on links between diseases, disorders and disabilities and possible environmental causes.

The Alliance for a Healthy Tomorrow is a coalition of citizens, scientists, health professionals, workers, and educators seeking preventive action on toxic hazards.

Because We're Worth It! The Campaign for Safe Cosmetics is a coalition whose goal is to protect the health of consumers and workers by requiring the health and beauty industry to phase out the use of chemicals that are known or suspected carcinogens, mutagens and reproductive toxins.