What are the restrictions placed on a commercial candidate flying with a third-class medical?

The restrictions on a commercial candidate flying with a third-class medical primarily focus on meeting specific health and safety standards while also adhering to any limitations imposed by an aviation medical examiner. A third-class medical certificate allows the pilot to operate as pilot-in-command under certain conditions, but if the medical certificate comes with restrictions, the pilot must comply with those limitations. This could include avoiding certain medications or procedures that could adversely affect their ability to fly safely.

While the other options suggest specific operational limitations, none encompass the broader requirement for the pilot to abide by their medical conditions and any additional stipulations set by their medical examiner. Thus, the correct interpretation acknowledges the importance of self-regulation based on a thorough understanding of one’s medical fitness for flying, ensuring safety for both the pilot and passengers.