It was voted into existence by the voters of Bonneville County in 1994. During the first years of its existence, it contracted for urban transit services with a non-profit transportation provider. On July 1, 2002, it started operating its own buses as the P.T.A. or Public Transit Authority transit service, with four new routes and no bus facility. In October 2002, its four buses had a total of 800
passenger boardings. In October 2003, there were 2,500 passenger boardings. In July 2003, a transit facility located at 1810 W. Broadway, Idaho Falls, ID was purchased. The service is growing at a steady rate and gaining greater public awareness and acceptance. This growth and changing public attitude toward transit are the result of hard work on the part of all the employees and their desire to provide the best possible service to their customers. July 3, 2006 was a momentous day for public transportation, not only in Idaho Falls but for the counties of Bonneville, Lemhi, Butte, Clark, Custer, Jefferson, Madison, Fremont, and Teton. On that date, Targhee Regional Public Transportation Authority purchased the assets of CART, Inc., hired its staff, and assumed all of the transportation services previously provided by CART, Inc.
