The Cruise Lines International Association issued a statement Friday that it’s ocean-going cruise line members that carry at least 250 passengers will voluntarily suspend their operations from U.S. ports through Sept. 15.

The “No Sail Order” handed down by the U.S. Centers for Disease Control and Prevention expires July 24, but the CLIA, in the statement, said “it is increasingly clear” that more time will be needed to resume cruising in the United States.

“we had hoped that cruise activity could resume as soon as possible after that date,” the statement said. “Although we are confident that future cruises will be healthy and safe, and will fully reflect the latest protective measures, we also feel that it is appropriate to err on the side of caution to help ensure the best interests of our passengers and crewmembers. The additional time will also allow us to consult with the CDC on measures that will be appropriate for the eventual resumption of cruise operations. CLIA member cruise lines will continually evaluate the evolving situation and make a determination as to whether a further extension is necessary.”