Composite Frame - Composite Frames have a single characteristic, but multiple lines of tolerance zone and datum reference callouts inside of multiple frames. Composite frames can be further subdivided into Composite Tolerance Frames and Non-composite Tolerance Frames. Composite Tolerance Frames have callouts that contain actual tolerance data (position callouts for patterns and profile callouts that control position). Non-composite Tolerance Frames have callouts that contain zone refinement information (projected tolerance zones and unit length bases callouts). Though graphically containing multiple frames, Composite Frames have only one tag per callout.