What is not a privilege of a CPL pilot?

The correct response highlights that a commercial pilot license (CPL) does come with certain limitations regarding acting as pilot-in-command during air transportation operations. A CPL allows a pilot to fly for compensation or hire, but there are additional regulatory requirements that must be fulfilled, particularly pertaining to the type of operation and the aircraft being flown.

Specifically, while a CPL pilot can operate various types of aircraft and share the first pilot responsibilities as necessary, they cannot act as a pilot-in-command without adhering to specific regulations, certifications, and ratings required for certain aircraft and operations. For instance, to act as pilot-in-command for air transportation, a pilot typically needs to have an appropriate type rating or meet certain experience requirements as outlined by aviation authorities. This restriction is in place to ensure safety and compliance with aviation standards.

In contrast, the other options represent privileges that a CPL pilot does possess, such as the ability to pilot heavier aircraft, serve as a co-pilot across various operations, and operate single-pilot aircraft in commercial environments under certain conditions.