The CDC created a list of rules for cruise ships to follow when sailing with passengers, and the rules were extended for three more months.
The plans are in place until Jan. 15 when companies can follow their own rules.
The rules, or conditional sailing order, were supposed to be finished Nov. 1.
In March of 2020 a no-sail order was put in place and paused the use of cruise ships.
In the spring some ships were allowed to sail again and have been doing so since. Most ships require proof of vaccination from adults.
Overall cruise lines have been cooperative and created guidelines to continue sailing in the United States.
Some officials felt that the government took a stricter stance with ship compared to planes.