Every personal watercraft (PWC) must have a US Coast Guard-approved life jacket for each person on board and a whistle or horn for signaling. Additionally, it's important to carry a fire extinguisher if the PWC has an inboard engine. These safety equipment requirements help ensure the safety of riders and compliance with regulations.
Fire extinguisher and emergency signaling devices must be aboard every personal watercraft.
Fire extinguisher and emergency signaling devices
A Personal Floatation Device.
A personal floatation device
Personal Flotation Device
Fire extinguisher and emergency signaling devices
It depends on the laws in your jurisdiction.
A flotation device for every person
A life preserver for every person aboard.
Fire extinguisher and emergency signaling devices
PFDs for all aboard
On the Titanic they were tested for the weight of 70 adult men. However, even at full capacity there would not have been enough room for every person aboard. Maritime law has changed since then and there must be enough room on lifeboats for every living soul aboard a ship.