What preflight action must the pilot-in-command take for day VFR compliance?

For day VFR (Visual Flight Rules) compliance, the pilot-in-command must ensure that the airworthiness certificate is legible. This is crucial since the airworthiness certificate is a vital document that indicates the aircraft meets the required standards for safe operation. It is essential for the pilot to verify that this document is accessible and readable before conducting flight operations, as it signifies that the aircraft has been inspected and is deemed safe for flight by appropriate aviation authorities.

While verifying fuel levels, ensuring the pilot is rested, and checking passenger luggage are all important aspects of preflight safety and operational readiness, they do not specifically address the regulatory requirements for day VFR compliance. The legibility of the airworthiness certificate is a direct reflection of the aircraft’s compliance with safety standards, which must be verified prior to departure.