When operating a PWC, which of the following is a requirement when pulling a skier?

When pulling a skier on a personal watercraft (PWC), having an observer on board is crucial for safety and effective communication. The observer serves as an additional set of eyes who can watch the skier and alert the operator to any changes in conditions or problems that may arise during the activity. Furthermore, having everyone onboard wearing personal flotation devices (PFDs) is a vital safety precaution. PFDs are essential because they provide flotation support if someone falls into the water, which can happen in water sports like skiing. This requirement ensures that all individuals, including the skier, are appropriately protected in case of an emergency.

In contrast, while it is important for the skier to wear a life jacket, and it is also good practice for everyone to wear PFDs, simply having an observer and PFDs is foundational to safely managing the ski activity. Operating at maximum speed is unnecessary and potentially dangerous, as it increases the risk of accidents. Additionally, having only the driver wear a PFD neglects the safety of both the skier and the observer, who may also need protection while on the water.