Centers for Disease Control and Prevention
Travel warnings, statistics, grant information, and the full text of the journals Morbidity and Mortality Weekly Report (MMWR) and Emerging Infectious Diseases.

Environmental Protection Agency (EPA)
The agency mission is to is to protect human health and to safeguard the natural environment. The home page has information on EPA projects, regulations, and publications.

Food and Drug Administration
U.S. Food and Drug Administration homepage include FDA News, drug approvals, and information relating to food and cosmetic products.

National Center for Environmental Health (NCEH)
This is a center of the Centers for Disease Control, U.S. Department of Health and Human Services-Public Health Services. Additionally, Screening Young Children for Lead Poisoning: Guidance for State and Local Public Health Officials, Centers for Disease Control and Prevention (CDC), November 1997 is available on the site as a fulltext book.

National Center for Toxicological Research
The mission is to conduct peer-reviewed scientific research that supports and anticipates the FDA's current and future regulatory needs.

US Chemical Safety and Hazard Investigation Board
The Board's mision is to promote the prevention of major chemical accidents at fixed facilities. Their Chemical Incident Reports Center lists incidents involving chemical safety.