Final answer:
Recreational boats up to 9 meters must carry a sound-signaling device unless all PWC occupants wear a lifejacket or PFD, ensuring water safety.
Step-by-step explanation:
Leisure craft up to 9 metres (29.5 feet) in length, including Personal Watercrafts (PWCs), are required to carry either a sound-signaling device or an efficient sound-producing device on board. However, PWCs are exempt from this requirement if everyone on board is wearing a lifejacket or Personal Flotation Device (PFD). It is crucial to prioritize safety while enjoying water activities to prevent accidents and ensure a quick response in case of an emergency. This requirement is a part of safety regulations to aid in communication and signaling for help if needed when out on the water.