The new CruiseHealth programme covers procedures before sailing, on board and during excursions.
They include touchless temperature checks and secondary screening where necessary before embarkation.
On board, ventilation systems have been enhanced, with HEPA filtration in key areas “such as medical centres and isolation rooms”.
Social distancing will be managed by regulating the size and flow of groups in venues.
“These are just the start as we adapt to the latest science and ever-evolving situation,” the line said.
Princess Cruises has still to make clear its policy on refunds if a voyage is disrupted due to a Covid-19 outbreak on board.
It said: “We are currently working through the protocols for our return to sailing and will share details as they become available.”
