Two Pathways for Resuming Cruises: What You Need to Know All the new details the CDC has released for simulated cruises as part of the framework on the Conditional Sailing Order. The CDC did switch gears. After releasing phase 2A one month ago, the agency has now released 2B and 3 as part of the framework of the Conditional Sailing Order. With the backlash the CDC received on 2A and the subsequent letter released two weeks ago with alterations, we are now seeing the return of cruising take shape. That being said, we are not there yet. Both phases 2B and 3 contain many procedures and guidelines that the cruise lines will need to adopt, while several regulations will be noticeable for guests onboard the ship.