In 2008 and 2009, the NIC and the Urban Institute selected six TJC Phase I learning sites to receive training and technical assistance to implement the TJC approach for jail-to-community transition: Davidson County, Tennessee; Denver, Colorado; Douglas County, Kansas; Kent County, Michigan; La Crosse County, Wisconsin; and Orange County, California.
In 2012, the NIC and the Urban Institute selected six TJC Phase II sites: Ada County, Idaho; Franklin County, Massachusetts; Fresno County, California; Hennepin County, Minnesota; Howard County, Maryland; and Jacksonville, Florida.