If it's available, you keep your luggage in your room the night prior to debarkation. Don't put it in the hall. It occurs sometime arounds 8am. To take part, you must be a US citizen with nothing to declare to Customs. You must be able to remove all of your luggage by yourself. In some cases, you might need to navigate elevators/escalators with your bags.
The program is run by the Customs Service [not Carnival]. As such, certain ports don't have it. And the possibility exists that the program...which existed for your ship LAST week and NEXT week....won't exist for YOUR week.
It was available to us at Port Canaveral on our last cruise. Terrific improvement over previous procedure. You must be able to carry your own baggage but I don't recall anything about being US citizen. On prior cruises we sat around until about 10:30 to disembark. Last cruise we left our room at 7:30AM and were walking up the ramp in the parking garage at 7:45AM.
I was wanting to do this after my 5-10-04 Sensation sailing. We could have done it from the Holiday in New Orleans after the 4-19-04 sailing, but chose not to. I will let everyone know after we return how it was in Tampa.
Now, if we can just get through the next 11 days!
NCL Dawn (Repo 14 nite) 11-1-09
RCCL Mariner of the Sea (Mexican Riviera) 4-18-10