California Code of Regulations (CCR)
Official California Legislative Information includes California's Health and Safety Code.
National Fire Protection Agency (NFPA)
NIOSH National Institute for Occupational Safety and Health/HHS
CDC Centers for Disease Control and Prevention/HHS
American Industrial Hygiene Association
American Conference of Governmental Hygienist
American Board of Industrial Hygiene
Institute of Hazardous Materials Managers
EPA RCRA Waste (Solid and Hazardous) Information:
RCRA Online Database of RCRA regulatory interpretations.
RCRA FAQS Database
EPA's List of Lists is a consolidated list of chemicals and synonyms (with RCRA listed waste codes) sorted both by CAS number and alphabetically.
EPA's Office of Solid Waste contact page
EPA's Office of Solid Waste and Emergency Response
EPA'S Waste Site links regarding solid and hazardous waste.
EPA's Universal Waste page includes basic information on the regulations, links to recyclers, list of state specific universal wastes.
EPA's eCycling page has links for donating or recycling e-wastes.