What must a student pilot have in their possession when acting as pilot-in-command?

A student pilot must have a valid student pilot certificate and a logbook endorsement for solo flight when acting as pilot-in-command. This requirement ensures that the student pilot has received specific training and authorization from a certified flight instructor for solo operations. The logbook endorsement acts as proof that the instructor has determined the student is competent to safely control the aircraft solo.

While a medical certificate is generally required for pilots, the specific stipulation for student pilots focuses on the endorsement because it grants them the legal authority to fly without the instructor present. Having the endorsement is critical, as it indicates that the student has met specific requirements related to their proficiency and understanding of the aircraft they will be flying.

In contrast, possessing a private pilot certificate is not appropriate for student pilots, as they are not yet licensed to that level. Similarly, a valid driver's license does not fulfill the requirements for operating an aircraft, as the regulations are specific to aviation credentials.