2026年 出入国管理と税関
海外の空港保安検査と税関規則
渡航先ごとに申告が必要なもの、到着時に制限される日用品を確認できます。
シンガポール
CAAS / ICA (Immigration & Checkpoints Authority) & HSA / SFA液体と保安検査の規定：Standard 100ml cabin liquid rule for flights departing Changi Airport.
検疫・農産物の規制：Fresh produce and meat restricted. Packaged food for personal use permitted within SFA guidelines.
医薬品と処方薬の規定：Melatonin and standard vitamins are classified as health supplements and permitted for personal use (up to 3 months). Controlled narcotics/tranquilizers require prior HSA approval.
免税範囲と税関の上限：SGD $500 for stays ≥ 48 hours; SGD $100 for shorter stays. Chewing gum is prohibited.
シンガポールで特に注意すべき品目：
Nicotine Pouches & VapesSTRICTLY BANNED. E-cigarettes, vaporizers, and tobacco-free nicotine pouches (like ZYN) are illegal to import, possess, or use under Singapore law. Fines up to SGD $2,000 apply at Changi Airport.
Cigarettes & TobaccoZERO duty-free allowance. You MUST declare even a single pack of cigarettes at the Red Channel at Changi Airport and pay excise duty.
Cooking Oil from MalaysiaSingapore Food Agency (SFA) permits travelers entering from Malaysia to bring up to 5 kg / 5 L of cooking oil for personal consumption without an import permit.
Melatonin & VitaminsMelatonin is OTC and legal to bring into Singapore for personal use (up to 3 months supply).
イギリス
DFT / UK Border Force & MHRA液体と保安検査の規定：100ml container limits in 1-liter clear bag (Next-generation 3D CT scanners currently deploying across UK airports).
検疫・農産物の規制：Strict prohibitions on bringing meat, milk, and plant products from non-EU countries into the UK.
医薬品と処方薬の規定：Controlled medications require a personal doctor letter. Melatonin is prescription-only to purchase within the UK, but incoming travelers are permitted to bring up to 3 months personal supply.
免税範囲と税関の上限：£390 general goods allowance per traveler (£270 if arriving by private boat/plane). Declare cash over £10,000.
イギリスで特に注意すべき品目：
Melatonin & Sleep AidsLegal to bring up to a 3-month personal supply through UK customs. Keep in original packaging or with prescription.
Baby Milk & Formula (Stansted/Heathrow)Baby milk, sterilised water, breast milk, and baby food are exempt from the 100ml liquid rule when traveling with an infant.
Perfume & ValuablesDuty-free perfume and engagement rings/jewelry are permitted within the £390 personal goods allowance.
AA Batteries & ElectronicsStandard dry batteries (AA/AAA) and low-power Apple AirTags are fully allowed in cabin and hold baggage.
フランス
DGAC / French Customs (Douane)液体と保安検査の規定：EU liquid rules in effect (≤ 100ml in 1-liter clear bag). Duty-free liquids in STEB bags allowed.
検疫・農産物の規制：Imports of meat, dairy, and plant products from outside the EU are restricted to prevent agricultural pests.
医薬品と処方薬の規定：Personal medications for up to 3 months are permitted. Doctor letter required for narcotics or psychotropics.
免税範囲と税関の上限：€430 duty-free allowance for air travelers over 15 years old.
フランスで特に注意すべき品目：
Melatonin SupplementsMelatonin up to 1.9mg per dose is sold over-the-counter in French pharmacies. Travelers can bring up to a 3-month personal supply.
Vaping & E-CigarettesPersonal e-cigarettes and vape liquids (up to 20mg/ml nicotine) are legal in France. Must be carried in cabin baggage.
オーストラリア
Australian Border Force (ABF) & Department of Agriculture, Fisheries and Forestry液体と保安検査の規定：International flights strictly enforce 100ml liquid container limits in cabin bags.
検疫・農産物の規制：EXTREME BIOSECURITY. You MUST declare ALL food, nuts, seeds, wooden items, and animal products on your Incoming Passenger Card. Failure to declare results in on-the-spot fines up to AUD $6,260.
医薬品と処方薬の規定：Prescription medicines must be declared; max 3-month supply permitted with doctor certificate.
免税範囲と税関の上限：AUD $900 general goods allowance per adult ($450 per child).
オーストラリアで特に注意すべき品目：
Cup Noodles & Instant RamenMUST BE DECLARED. Noodles with real meat, egg, or poultry ingredients may be confiscated; vegetarian/seafood broths usually pass.
Cashew Nuts & AlmondsMUST BE DECLARED. Commercially roasted, packaged nuts with shells removed will clear biosecurity inspection.
Canned Tuna & SeafoodMUST BE DECLARED. Commercially canned, shelf-stable tuna in hermetically sealed cans is permitted.
Wooden Photo FramesMUST BE DECLARED. Manufactured and varnished wood photo frames free of bark and insect holes will clear inspection.
Nail Machines & ToolsElectric nail drill machines and beauty tools for personal use are permitted without restriction.
日本
JCAB / Japan Customs & Ministry of Health, Labour and Welfare (MHLW)液体と保安検査の規定：Standard 100ml liquid rule for international arrivals and departures.
検疫・農産物の規制：Fresh fruits (including bananas and citrus) and meat products strictly prohibited without inspection certificates.
医薬品と処方薬の規定：Strict bans on stimulants and pseudoephedrine (Sudafed, Vicks inhalers). Personal prescription supplies up to 1 month permitted with prescription.
免税範囲と税関の上限：200,000 JPY exemption for personal purchases.
日本で特に注意すべき品目：
EpiPen Auto-InjectorsOne EpiPen auto-injector for emergency personal allergy treatment is permitted into Japan without prior Yakkan Shoumei import certificate. Carry doctor prescription.
アメリカ
TSA / U.S. Customs and Border Protection (CBP)液体と保安検査の規定：Standard 3-1-1 Rule (containers ≤ 3.4 oz / 100ml in 1 quart clear bag).
検疫・農産物の規制：All agricultural items, fresh meats, plants, seeds, and fresh fruits must be declared on arrival.
医薬品と処方薬の規定：Prescription medications in original containers recommended. Up to 90-day personal supply permitted.
免税範囲と税関の上限：$800 exemption per returning resident; currency over $10,000 must be declared on Form FinCEN 105.
アメリカで特に注意すべき品目：
Baby Formula & FoodBaby formula, breast milk, and baby food in reasonable quantities are exempt from the 3-1-1 liquid rule.
Chocolate & Packaged SnacksCommercially packaged chocolates, cookies, and candy are permitted into the US through CBP.
カナダ
CATSA / Canada Border Services Agency (CBSA)液体と保安検査の規定：3-1-1 liquids rule enforced at CATSA checkpoints.
検疫・農産物の規制：Strict biosecurity screening on incoming food, wood, and agricultural products.
医薬品と処方薬の規定：Prescription medications must be declared if carrying more than personal 90-day supply.
免税範囲と税関の上限：CAN $800 exemption for stays over 48 hours. Cannabis is strictly illegal to transport across Canadian international borders.
カナダで特に注意すべき品目：
Baby Formula Powder & MilkCommercially packaged powdered infant formula up to 20 kg per person permitted for personal use.
ドイツ
Federal Police (BPOL) / German Customs (Zoll)液体と保安検査の規定：EU 100ml liquid rule strictly enforced.
検疫・農産物の規制：Food imports from non-EU nations restricted (meats, dairy banned).
医薬品と処方薬の規定：Medicines for personal travel permitted for up to 3 months' supply.
免税範囲と税関の上限：€430 exemption for air travelers.
ドイツで特に注意すべき品目：
Cigarette Allowance200 cigarettes duty-free allowance for non-EU arrivals over age 17.
海外の税関に関するよくある質問
Can I bring melatonin on a plane into the UK?
Yes. Even though melatonin requires a prescription to buy in UK pharmacies, UK Border Force and MHRA guidelines legally allow international visitors to bring up to a 3-month personal supply in their carry-on or checked baggage.
Can you bring nicotine pouches (ZYN) into Singapore through Changi Airport?
No. Nicotine pouches, snus, and e-cigarettes are strictly banned under Singapore tobacco analogue laws. Possession or importation at Singapore Changi Airport carries heavy fines up to SGD $2,000.
Can I bring cup noodles and cashew nuts into Australia?
Yes, but you MUST declare all food items on the Australian Incoming Passenger Card. Commercially roasted nuts without shells and vegetarian/seafood instant noodles will clear biosecurity, while noodles containing pork or poultry broths may be seized.
Can I bring an EpiPen to Japan?
Yes! Japan Customs permits travelers to bring 1 personal EpiPen auto-injector for emergency allergy management without requiring advance Yakkan Shoumei paperwork. Keep it with your doctor prescription.
Is melatonin legal in France?
Yes! Melatonin supplements up to 1.9mg are sold over-the-counter in French pharmacies, and travelers can bring up to a 3-month personal supply through customs.
Can I bring cooking oil from Malaysia to Singapore?
Yes. Under Singapore Food Agency (SFA) rules, individuals entering Singapore from Malaysia may bring up to 5 kg / 5 L of cooking oil for personal consumption without a commercial import permit.