Firearms, ammunition, knives and weapons of any kind are prohibited. Smoking marijuana or other illegal substances is not permitted at any time. For the comfort of all Guests, the theme parks, the Esplanade between the parks and the Downtown Disney District are smoke free.

As of 2026, both Disneyland Park and Disney California Adventure are entirely smoke-free environments. This policy, which was significantly tightened in 2019, prohibits the smoking of tobacco, e-cigarettes, and vaping products within the theme parks, the Esplanade, and the Downtown Disney District. There are no designated smoking areas inside the security perimeter; guests who wish to smoke must exit the parks, pass through the security gates, and use the designated smoking areas located outside the main entrances. Additionally, smoking is strictly prohibited in all Disney Resort hotels, including on guest room balconies and patios. Violating this policy can result in a "room recovery fee" ranging from $250 to $500 for cleaning services. Disney's stance is designed to provide a healthy and comfortable atmosphere for all guests, particularly families with children, and aligns with broader public health trends in California. Guests are encouraged to plan ahead for the time required to exit and re-enter the park if they need to smoke.