Class A Reserve Service
From Air-Force.ca Wiki
Per QR&O 9.06,
A member of the Reserve Force is on Class "A" Reserve Service when the member is performing training or duty in circumstances other than those prescribed under articles 9.07 (Class "B" Reserve Service) and 9.08 (Class "C" Reserve Service).
Class "A" Reserve Service includes proceeding to and returning from the place where the training or duty is performed, but not when that training or duty, including attendance at local parades, local demonstrations or local exercises, is performed at local headquarters.
