The Crew Member Certificate (CMC) shall be accepted by each Contracting State for identification purposes in combination with which of the following?

• A. None of the above
• B. Together with a valid passport
• C. Together with a visa if required
• D. Together with a valid flight crew license

Answer: (A)

The main idea here is that the Crew Member Certificate is intended to function as a standalone identification credential for aircrew. It is designed to be accepted by Contracting States for identification by itself, so it does not need to be paired with another document such as a passport, a visa, or a flight crew license for identification purposes. The listed combinations aren’t required to satisfy the identification role, since the CMC already serves as the identification document. Of course, for international travel or border control you would still use the usual travel documents, but for identification within the aviation context, the CMC stands on its own.