Final answer:
When flying over water within a certain distance from the landing site or cruising speed, specific equipment is required for safety purposes.
Step-by-step explanation:
For safety, certain equipment needs to be met when flying over water within 200nm of the landing site or 60 minutes at cruising speed.
Having life rafts or floats on hand in case of an emergency water landing is one such requirement. All of the crew members and passengers should be able to fit on these rafts.
Having life jackets on board for every passenger in the aircraft is another requirement. Should there be a water landing, these jackets ought to be readily available and prepared for action.