In the United States, a quick response team (QRT), also known as a drug abuse response team (DART), is an integrated, first responder and community paramedicine unit comprising law enforcement officers, rescue personnel, health care professionals and / or substance abuse counselors. A QRT is trained to serve as a first responder unit for narcotic-related medical emergencies and, thereafter, to approach and counsel overdose victims during their "recovery windows" — the 72 hours immediately following life-threatening drug overdoses — when users are thought to be more open to accepting help.