http://www.cpsc.gov/cpscpub/pubs/5074.html
U.S. Consumer Product Safety Commission
The U.S. Consumer Product Safety Commission recommends that consumers purchase and use safety devices to help prevent deaths and injuries associated with hazards in or around the home. Safety devices include smoke detectors to prevent home fires, bicycle helmets to reduce head injuries, ground-fault circuit-interrupters to prevent electrocutions, safety latches to prevent poisonings, and more.