飛行機に大麻・医療用大麻を持ち込める？（米国TSA・CATSA規則）

条件付き持込可：航空保安基準の指定条件および制限内で持ち込み可能です。

受託手荷物：数量制限および指定の梱包基準を満たす場合に限り預け入れ可能です。

Standard carry-on baggage size allowances apply; TSA publishes no individual numerical cap for personal use.

TSA officers do not search for drugs and are not police — but if screening turns it up, protocol is to refer you to local law enforcement. In airports inside prohibition states, that referral is the real risk.

Yes, on domestic Canadian flights within the adult public-possession limit — keep liquid or topical cannabis in the 1 L liquids bag. Never depart Canada (or return) with any amount: crossing the Canadian border with cannabis is a criminal offence, medical use included.

In the US, cannabis and THC gummies containing more than 0.3% THC are federally prohibited under 21 U.S.C. § 802. TSA does not actively search for drugs, but if detected during checked bag screening, officers must notify law enforcement. In Canada, domestic passengers may carry up to 30 grams of legal recreational cannabis in checked or carry-on bags, but crossing international borders remains strictly illegal.