Carnival Cruise Lines will stop passengers from bringing bottled water, bottled soda and other bottled nonalcoholic drinks onboard, effective July 9. Carnival's Liquor and Beverage Consumption Policy Guest has long prohibited guests from bringing alcoholic beverages onboard. But one can still carry on up to 12 unopened cans or cartons of water, soda and non-alcoholic beverages per person during embarkation, the cruise line said in a statement. The line released the new policy today in a letter sent to travel agents and booked passengers. Signs will be posted at embarkation ports, and Carnival will update its website to reflect the change. The company cites delays in the boarding process as one reason why they are enacting the new policy.