For the majority of journeys of less than 16 days, Princess Cruises no longer requires passengers to be immunized against COVID-19.

Additionally, the Santa Clarita-based firm declared that starting September 6, passengers who have had their vaccinations and are traveling on itineraries shorter than 16 days will no longer need to undergo testing before boarding.

Unvaccinated passengers or those who do not have vaccination documentation will self-test three days before departure and upload documentation of a negative test before boarding.

The new rules, released on Friday, apply to itineraries leaving from all ports

Except those where local laws and protocol may differ, such as in Canada, Greece, and Australia

"These updated guidelines help ensure a Princess vacation is available to everyone," said John Padgett, president of Princess Cruises.

According to John Padgett, president of Princess Cruises, "these enhanced regulations help ensure a Princess trip is accessible to everyone."