Chemtrec – An affiliate of the ACC that offers services to shippers and carriers of hazardous materials, many of whom contract Chemtrec to provide toll-free, 24-hour emergency response information and technical support in the event of a hazardous material accident. www.chemtrec.org

Crime Stopper – Various telephone hot lines established by states, etc. for reporting tips about crimes. For example, Pennsylvania Crime Stoppers at www.pacrimestoppers.org