|Rollsigns from Ajax, ON
|Ajax Transit operated as an independent transit system for the Town of Ajax up until
September 4, 2001, when it and its neighbouring system to the west, Pickering Transit,
merged to become the Ajax-Pickering Transit Authority. APTA operated jointly until
January 1, 2006, when it, along with Whitby Transit, Oshawa Transit and Clarington
Transit of Bowmanville, merged to become what is now Durham Region Transit.