Final answer:
An airman can continue to exercise the privileges of their certificate during the appeal process of a non-emergency certificate action as the certificate remains valid until a final decision is issued by the relevant authority.
Step-by-step explanation:
The statement regarding an airman being able to continue exercising the privileges of his/her certificate until all appeals have been decided in a non-emergency action is True.
According to the United States regulations concerning aviation, during non-emergency certificate actions, an airman has the right to exercise the privileges of their certificate during the appeal process.
This is because the certificate has not been revoked or suspended, which allows the airman to operate under its authority until a final decision is made by the appropriate court or authority, such as the Courts of Criminal Appeals (CCA) for the Army, Navy-Marine Corps, Air Force, and Coast Guard, or the United States Court of Appeals for the Armed Forces (CAAF).