Florida Attorney General Ashley Moody. (Courtesy photo)

An appeals court reversed itself and at least temporarily blocked federal Centers for Disease Control and Prevention restrictions on the cruise-ship industry during the COVID-19 pandemic.

A panel of the U.S. Court of Appeals for the Eleventh Circuit cleared the way for a preliminary injunction against the restrictions. The same panel had issued a ruling that put the preliminary injunction on hold.

The two-paragraph order Friday did not explain the panel's reasons for vacating its previous ruling. But the move was a victory for Gov. Ron DeSantis and Attorney General Ashley Moody who contend that the CDC overstepped its legal authority by placing the restrictions on the industry.

Moody, backed by DeSantis, filed a lawsuit in April challenging the restrictions, which came after the cruise industry shut down because of COVID-19 outbreaks onboard ships early in the pandemic.

The legal battle focuses heavily on what is known as a "conditional sailing order," which the CDC issued in October. The conditional sailing order included a phased approach to resuming cruising, with ship operators needing to meet a series of requirements.

U.S. District Judge Steven Merryday last month agreed with the state's arguments and issued a preliminary injunction against the restrictions. U.S. Department of Justice attorneys, representing the CDC, appealed Merryday's ruling to the Atlanta-based appellate court.

Also, the Department of Justice attorneys requested a stay of Merryday's preliminary injunction while the appeals court considers the underlying issues in the case. The three-judge panel on July 17 approved the requested stay, but then changed its mind Friday, saying only that the federal government "failed to demonstrate an entitlement to a stay pending appeal."

The underlying appeal will still move forward, but Friday's decision allows the preliminary injunction to take effect. The panel was made up of Judges Charles Wilson, Jill Pryor and Elizabeth Branch.

After the July 17 ruling, DeSantis had vowed to fight to get the stay removed. The state on Friday also asked U.S. Supreme Court Justice Clarence Thomas to step in and eliminate the stay.

"I think most courts at this point have had their limit of the CDC issuing these dictates without a firm statutory basis," DeSantis said July 19. "I am confident we'd win on the merits at the full 11th Circuit, and obviously I am confident we would win at the U.S. Supreme Court."

But in asking the appeals court for the stay, the CDC's attorneys argued that the "preliminary injunction rests on errors of law and is a clear abuse of the district court's discretion."

"All of the cruise ships at issue here are foreign-flagged vessels that must stop at one or more foreign ports during each voyage," Justice Department attorneys wrote in the July 7 motion for a stay. "Cruise travel has the potential to introduce COVID-19 variants of concern into the United States from countries such as the Bahamas, Mexico, Honduras, Saint Maarten, Dominican Republic, Haiti, Aruba, and Saint Kitts and Nevis. The CDC has authority to make and enforce such regulations as in its judgment are necessary to prevent the introduction, transmission or spread of communicable disease from a foreign country into the United States."