A Correctional Response Team (CRT) is a team of highly trained Corrections Officers or Deputy Sheriffs in the United States tasked with responding to incidents, riots, cell extractions, mass searches, or disturbances in prisons or jails possibly involving uncooperative or violent inmates. CRT team members are required to be contactable and available to respond at all times. CERT is founded upon a team concept and is made up of highly motivated and experienced officers.