Restricted Waters: Defines an area less than 2 nautical miles or 3 minutes
or 50 yards!
Piloting Waters defines an area of 2-10 nautical miles or 3-15 minutes or 100 yards!
Coastal Waters defines an area of 10-30 nautical miles or 15-30 minutes or 500 yards!
Open Ocean defines an area over 30 nautical miles or 30 minutes or 1500 yards!