Agreements with an initial three initial US homeports have been signed off by the US Centers for Disease Control and Prevention (CDC).
The line hopes to sail from PortMiami, Port of Galveston and Port Canaveral this summer.
Carnival Horizon, sailing from Miami, and Carnival Vista and Carnival Breeze, sailing from Galveston, will be the the line’s first ships to carry guests under Carnival’s proposals for a July restart.
It expects to announce plans to start operations from Port Canaveral "over the coming days".
