Passengers look out from the deck of the Coral Princess cruise ship as it docks in Miami, Florida, on April 4.
Passengers look out from the deck of the Coral Princess cruise ship as it docks in Miami, Florida, on April 4. Chandan Khanna/AFP/Getty Images

The US Department of Homeland Security and Centers for Disease Control and Prevention are now restricting cruise ship passengers and crew arriving in the US from boarding domestic commercial flights.

The restrictions will apply even to people not showing symptoms and also would require 14-day quarantines for cruise passengers and crew.

CNN reported on the restrictions being finalized earlier Sunday.

An administration official said these new protocols would likely be agreements between cruise ship companies and the government, requiring that they be followed in order for these ships to dock at specific ports.

Exceptions: The official said that there could be a range of exceptions and specific circumstances that would divert from the new protocols, specifically as it relates to foreigners on the ships.

Limit onward travel: These new restrictions will limit cruise passengers and crew to flying on charter aircraft or using private transportation.

How many ships could be affected? The US Coast Guard said Saturday there are 114 cruise ships, carrying 93,000 crew members, either in or near US ports and waters.

This includes 73 cruise ships, with 52,000 crew members, moored or anchored in US ports and anchorages. Another 41 cruise ships, with 41,000 crew members, are underway and still in vicinity of the United States. The cruise industry has an ongoing obligation for the care, safety and welfare of their seafarers.