Import, Export and Travel Questions

Read this first

Moving a controlled substance across a border is treated more seriously than many people expect, and the rules of the country you leave, the countries you pass through and the country you enter can all apply. This page states what we read from official sources and what we did not. It is education, not legal advice. Laws change, so check the official agency before any trip. Each statement names the place, activity and source, read 2026-10-22.

United States: import and export

Federal law makes it unlawful to import into the United States any controlled substance in Schedule I or II, with narrow exceptions written into the statute. [1] Federal law also separately makes it an offence to knowingly or intentionally import or export a controlled substance contrary to those provisions. [2]

Psilocybin, psilocyn, mescaline, DMT and the plant peyote are listed in federal Schedule I. [3] (See plant vs compound distinctions for how the wording works.) We did not review how any particular product, plant or fungus is treated at the border.

United States: customs and airport screening

U.S. Customs and Border Protection says that if medication you bring is also a controlled substance, you also need to comply with Drug Enforcement Administration requirements. [4] For which psychedelic-related medicines are approved at all, see medical approval. We did not read country-by-country rules for carrying prescribed controlled medicines.

The Transportation Security Administration says its officers do not search for illegal drugs, but that if an illegal substance or evidence of criminal activity is found during security screening, TSA will refer the matter to a law enforcement officer. [5] That is a statement about screening, not a promise that nothing will be noticed, and it does not affect the customs rules above. The page we read is about medical marijuana; we use only its general screening statement.

Other countries

We did not read customs or drug-control rules for other countries for this page, so we make no statement about them. Some points are worth knowing in general:

• The 1971 UN Convention asks parties to require a special licence or prior authorization for trade and possession of Schedule I substances. [6] Countries then set their own rules.
• A substance can be allowed in one place and an offence in the next, including during a layover.
• Domestic exemptions, religious or supervised-service arrangements and decriminalization do not usually extend across a border. See religious exemptions and decriminalization vs legalization.

Where to check

Use the official customs, border and drug-control agencies of each country involved, read close to the travel date. A traveler with a prescribed controlled medicine should ask the prescriber and the destination country's official agency. For cannabis, see the cannabis equivalent.

Related guides

Psychedelic legal status by country and how we verify legal information.