• Traveling with nicotine devices in California requires checking local rules, airline policies, and device safety. No single federal law bans personal use, but cities like San Francisco may restrict sales and public use. Airline rules typically require devices in carry-on bags, and lithium batteries must be protected from damage. Always verify current rules with official sources before you travel.
• Check city and county rules—California lacks a statewide ban on personal vaping, but local ordinances vary widely.
• TSA allows e-cigarettes and vapes in carry-on bags only, with batteries installed or in protective cases.
• Protect lithium batteries from damage and avoid extreme heat to prevent fire risks during travel.
• Verify each airline's policy—most require devices in carry-on, not checked bags.
• When in doubt, contact the airline and local authorities before flying.