What is required if an airplane is being flown for hire over water?

When an airplane is being flown for hire over water, having approved flotation gear for each occupant is required due to safety regulations. This requirement is in place to ensure that in the event of an emergency landing on water, all individuals aboard have the means to stay afloat and be rescued effectively. The presence of flotation gear significantly increases survivability rates, making it a critical safety measure in aviation operations over aquatic environments.

While other options may relate to safety or operational protocols, they do not have the same specific regulatory requirement associated with flying for hire over water. For instance, flight insurance coverage, communication devices, and crew requirements may enhance operational safety or meet certain operational standards, but they are not mandated specifically by regulations governing flights over water for hire in the same direct manner that flotation gear is.