This is so confusing, it says one thing in the FAQ, but it makes no mention of cruise length on the vaccine and testing requirement page. If it still applied, I would expect to see it under "Voyages with Enhanced Guidelines" but cruise length is not listed.
(Copied and pasted from the Princess website):
Effective on voyages departing on September 6, 2022 & beyond (Voyages Departing from the United States, United Kingdom & Europe^)
Updated: August 24, 2022
Vaccination Status
Definition by Country's Health Authority
Pre-Travel Test Type &
When to Take Test Before Boarding
Age: 5 Years and Up
Voyages from the
U.S., UK, EU
Voyages with Enhanced Guidelines^
Fully Vaccinated*
Received primary series of COVID-19 vaccines with final dose at least 14 days before embarkation.
Testing not required
Medically assisted Antigen or PCR within 3 days
Not Vaccinated
Not fully vaccinated are welcome to cruise. If cruise includes a Canadian port, an additional medical exemption is needed.
Self-administered Antigen OR medically assisted PCR within 3 days
Medically assisted Antigen or PCR within 3 days
Kids under 5 do not require pre-travel testing. Minimum age to sail is 6 months or 12 months based on cruise itinerary, review Passage Contract for details.
^Enhanced Guidelines Voyages include full Panama Canal transits, Trans-Ocean crossings, special voyages, Greek guidelines (voyages departing, arriving or visiting Greece), Canadian guidelines (voyages, arriving or visiting Canada).
* Note all Alaska voyages include Canada and must follow Canadian guidelines. For voyages departing, arriving or visiting Canada, please refer to the Canada table for Vaccination and Testing Requirements.
**The Greek government has their own testing requirements. For voyages departing, arriving or visiting Greece, please refer to the Greece table for Vaccination and Testing Requirements.