What is advised and what is required are two different things.
I personally would not cruise without a passport. But I have my passport and can grab it and go. Now if I misplaced it, it's not going to stop me from cruising because a passport is not the REQUIREMENT for a closed loop cruise from a US port. At this point in time, my driver's license and birth certificate are all that is needed. I don't need to call DCL. It isn't their rules - it's a government requirement so I can check the State Departments website and see what the current requirements are.
I personally would not cruise without a passport. But I have my passport and can grab it and go. Now if I misplaced it, it's not going to stop me from cruising because a passport is not the REQUIREMENT for a closed loop cruise from a US port. At this point in time, my driver's license and birth certificate are all that is needed. I don't need to call DCL. It isn't their rules - it's a government requirement so I can check the State Departments website and see what the current requirements are.