This fact sheet from the Federal Communications Commission (FCC) offers answers to common questions about the Commercial Mobile Alert System (CMAS) which sends text alerts to cell phones. CMAS is a public safety system that can target a given geographic area using cell towers (e.g. lower Manhattan) with tailored information. CMAS broadens the existing radio and television Emergency Alert System (EAS) so that it includes wireless carriers.
Lessons Learned Information Sharing (LLIS)