Cruise ships are graded on cleanliness by the Centers for Disease Control and Prevention. A satisfactory score is 86 or higher. Several major cruise lines have ships that undergo these inspections.

These inspections are done on a 100-point scale and are unannounced. The results of these inspections can be useful to people planning cruises. Further details on the scores of specific ships are available, including those that sail from a particular port in Texas.