The Centers for Disease Control and Prevention is allowing cruise ships to resume operations this summer, but Norwegian Cruise Line CEO Frank Del Rio says that will be unlikely given the agency's tough requirements.

August is also in jeopardy and it's all because of the disjointed guidelines from the CDC," Norwegian Cruise Line CEO Frank Del Rio said on CNBC's Closing Bell.

The CDC issued technical guidance for the cruise industry last week and announced it was committed to allowing the industry to resume operations by mid-summer.

Del Rio claimed the requirements put on the cruise industry are tougher than those for any other industry.