Norwegian Cruise Line issued additional cruise cancellations after  and Carnival Cruise Line also additional canceled cruises Tuesday.

The announcements from Norwegian and Carnival are only the latest in a constant stream of cancellations throughout the first part of 2021. 

Lines have repeatedly pushed back their restart dates as they wait for additional guidance from the U.S. Centers for Disease Control and Prevention regarding the criteria to be used in the next phase of its .

Scroll down to see a status report for each line.

Norwegian Cruise Line

, but that didn’t indicate an end to the litany of cruise cancellations the company has seen.