No, CBD vapes and all other CBD-derived products are strictly prohibited on Carnival Cruise Line ships. While CBD might be legal in many US states and international jurisdictions, cruise lines must comply with federal and international maritime laws, which generally classify all cannabis-derived products—including those with zero THC—as prohibited substances. Carnival's official "Prohibited Items" policy explicitly lists marijuana, CBD oil, and CBD products as banned items. If you are caught with a CBD vape during the boarding process or while on the ship, it will be confiscated, and you could face significant penalties, including being denied boarding or even disembarked at the next port without a refund. This strict stance is largely due to the fact that cruise ships visit various international ports where local drug laws may be extremely severe; the cruise line avoids the legal risk of having passengers carry potentially controversial substances across international borders. To ensure a smooth vacation in 2026, travelers are advised to leave all CBD products, regardless of their intended medical use or legal status at home, and stick to standard nicotine vapes in designated smoking areas only.