When an altitude clearance is issued, what is the required action by the pilot?

• A. Verify with the pilot's own notes that the altitude is correct
• B. Read back the altitude exactly and confirm reception; proceed as directed.
• C. Change the altitude to something else you prefer
• D. Await an additional instruction before reading back

Answer: (B)

Reading back the altitude exactly and confirming reception is the standard action when ATC issues an altitude clearance. It creates a precise, verifiable record of the instruction and ensures both you and ATC are aligned before you proceed. Other options fall short because relying on personal notes can introduce discrepancies, changing altitude on your own ignores the clearance, and waiting for more instructions before confirming delays compliance.