A light aircraft pilot landing on Runway 03 at TUS was instructed to turn right on Taxiway A2; then was informed a runway incursion had occurred. The commercial airport diagram depicts Taxiway A2; but the government chart does not.

Narrative

After landing and rollout on Runway 3 I was directed by control to exit right on Taxiway A2. After making the right onto A2 I was told I was on a Runway (11L) and was directed to Taxiway D and to contact Ground Control. Contrary to the airport diagram there is a Taxiway A2; with signage; accessible from Runway 3 to the right. This is not shown on the airport diagram At no time did I cross a runway line. Perhaps the controller; who was holding a takeoff on Runway 21; should have directed me to exit right onto Taxiway A3. Tucson International (TUS) is a training site for controllers. At no time was there a conflict with any other aircraft.Callback conversation with reporter revealed the following information: The reporter stated he has flown into this airport for many years and feels that an error or misunderstanding caused the controller to state that a runway incursion occurred after the pilot turned right onto Taxiway A2. The reporter is confident that Runway 11L/29R does not extend all of the way to Runway 3/21 because the FAA chart that he uses is a light shaded color between Runway 3/21 and the end of Runway 11L/29R; not a solid black line used to depict the runway.