It comes after the lines’ UK sister brands P&O Cruises and Cunard also relaxed their Covid testing rules.
Unvaccinated passengers will need to show a negative test result taken within three days of departure at the time of embarkation.
The changes will come into effect on 6 September – the same date P&O Cruises and Cunard will remove their testing mandates for fully vaccinated passengers on shorter sailings.
"Our ships have been sailing very full all summer, but there is still room for more of our loyal guests, and these guidelines will make it a simpler process, and make cruising accessible for those who were not able to meet the protocols we were required to follow for much of the past 14 months," said Christine Duffy, president of Carnival Cruise Line.
"We’ve got lots happening, with Carnival Luminosa and Carnival Celebration joining our fleet this November and more to come in 2023. Whatever the ship, homeport or itinerary that works for you, our great onboard team is ready to deliver a fun vacation – something we all look forward to even more nowadays."
