Answer first: For a customs prohibited items check, review the official border agency rules for your destination and return country, then check food, medicine, plants, animal products, cash, alcohol, tobacco, gifts, and commercial samples before packing or declaring them.
Last checked: June 16, 2026.
Quick check
| Check | Why it matters | Where to verify |
|---|---|---|
| Destination rules | An item allowed at home may be restricted on arrival. | Destination customs agency |
| Return rules | You may also face restrictions when coming back. | Home-country border agency |
| Food and animal products | Meat, dairy, seeds, plants, and fresh food often have strict rules. | Customs and agriculture pages |
| Medicine | Prescription and controlled-substance rules can differ. | Customs and health authority |
| Cash and goods value | Declaration thresholds can apply even when an item is allowed. | Customs declaration guidance |
Step-by-step verification
- List the exact items you plan to carry, including food, medicine, gifts, and samples.
- Check the destination customs agency before relying on travel forums.
- Check return-country rules if you will bring the item back.
- Keep prescriptions, product labels, purchase receipts, and permits where relevant.
- Declare items when the official form or officer requires it.
What can differ
- Airline security rules and customs rules are separate checks.
- Personal-use rules can differ from commercial samples or resale goods.
- Rules can change during disease, pest, biosecurity, or sanctions events.
Official sources
Use official or primary sources before relying on ads, directories, old forum posts, or copied summaries.
| Official source | URL |
|---|---|
| U.S. CBP prohibited and restricted items | https://www.cbp.gov/travel/us-citizens/know-before-you-go/prohibited-and-restricted-items |
| U.S. CBP Know Before You Go | https://www.cbp.gov/travel/us-citizens/know-before-you-go |
| UK bringing goods into the UK | https://www.gov.uk/bringing-goods-into-uk-personal-use |
Related checks
FAQ
Is customs the same as airport security?
No. Airport security checks what can go through screening; customs checks border import and declaration rules.
Can I bring prescription medicine?
Often yes, but controlled medicines, quantity limits, labels, and documentation can differ by country.
Should I declare food if I am unsure?
Follow the official declaration form and officer instructions. Failing to declare restricted food can create penalties.
Note: Before Travel Check is not a government agency, regulator, airline, manufacturer, lender, tax adviser, legal adviser, or official registry. This guide explains how to check official sources before acting.