The permit behind an imported controlled substance

Two instruments, and which one applies

The scheme sorts substances into two lanes, and both require registration first.

The first lane needs a permit. It covers substances in the first two schedules, and any narcotic controlled substance in the third, fourth or fifth. It also covers certain non-narcotic third-schedule substances the agency has specifically designated by regulation. And it covers non-narcotic fourth or fifth schedule substances that also appear in the first two schedules of an international psychotropic convention.

The second lane needs a declaration. It covers the remaining non-narcotic substances in the third, fourth and fifth schedules.

Either way, nobody imports without being properly registered under the Act or exempt from registration in accordance with the registration rules.

One sentence prevents the paperwork from being reused. A separate permit or declaration is required for each shipment of a controlled substance to be imported.

The agency also publishes the list of designated third, fourth and fifth schedule non-narcotic substances that need a permit rather than a declaration. It is short, and every entry on it is a cannabis-derived or synthetic cannabinoid product tied either to an approved drug or to a state medical program.

What a permit application has to contain

The application is filed on a numbered form through a secure agency network, signed and dated by the importer, and it has to carry the importer's registered address as the destination.

The description of the goods is detailed. It asks for the drug name, the dosage form, the national drug code number and the agency's own controlled substance code number. Then the number and size of the packages or containers, the name and quantity of the substance in any finished dosage units, and the quantity expressed in kilograms.

Around that sit eight further items. The consignor's business details, or a statement that they are not yet known. The foreign port and country where the journey begins. The port of entry. The latest date the shipment will leave. The stock on hand of the substance being imported. The name of the importing carrier or vessel. And two figures about the importer's allotment for the calendar year.

A parenthesis inside that sixth item states a flat prohibition. Imports of controlled substances in the first two schedules, and of narcotic drugs in the third, fourth or fifth schedules, by mail are prohibited.

What the agency has to find before issuing one

A permit is not granted on request. The Administrator may authorize importation of a first or second schedule substance, or a narcotic in the lower schedules, only on making one of four findings.

That the substance is crude opium, poppy straw, concentrate of poppy straw or coca leaves, in the quantity found necessary for medical, scientific or other legitimate purposes. That it is necessary to meet medical and scientific or other legitimate needs during an emergency where domestic supplies are inadequate, or where competition among domestic manufacturers is inadequate. That the domestic supply is inadequate for scientific studies, with delivery restricted to named categories of recipient. Or that the importation is for ballistics or other analytical or scientific purposes, again with restricted delivery.

The permit itself is tightly bounded. It bears a unique number, is not transferable, and any alteration after signature renders it void. It authorizes one shipment, not exceeding a specified quantity, through a named port, before a specified date.

The definition of a single shipment is written out. One permit authorizes a quantity imported at one place, at one time, for delivery to one consignee, on a single conveyance, on one bill of lading. A permit does not authorize goods divided onto two or more conveyances.

And it has a shelf life. A permit is void after its expiration date, which in no event is more than one hundred and eighty calendar days after issue.

The permit is also distributed rather than simply handed over. The agency transmits it to the competent national authority of the exporting country, and the importer keeps an official record of it as the record of authority for the importation. The importer has to ensure the record accompanies the shipment to the registered location, and drop shipments are prohibited.

The declaration route, and its clocks

Where no permit is required, the importer files a declaration on a different numbered form, and the timing is fixed.

It has to be filed not later than fifteen calendar days before the anticipated date of release by a customs officer. It is signed and dated, and it specifies the address of the final destination, which has to be the importer's registered location.

Filing is not complete when the form is sent. The agency assigns a transaction identification number after receipt and review, and the declaration is not deemed filed, and is not valid, until that number is issued. The importer may proceed only once it has been.

A waiver route exists for emergency or unusual instances, and it requires a specific confirmation from the Administrator or a delegate advising the registrant to proceed under it.

Like a permit, a declaration goes void one hundred and eighty calendar days after it is deemed filed.

Amendments follow the same shape in both lanes. A declaration may be amended in the same circumstances a permit may, and while an amendment is under review the original is temporarily stayed and cannot authorize a release. An amendment is not deemed filed until the agency issues a transaction identification number for it.

After the shipment moves, and when it does not

Both routes carry a reporting duty on the way out.

Within thirty calendar days of actual receipt at the registered location, or within ten calendar days of a written request from the agency, whichever comes sooner, the importer files a report. It states the date of release by a customs officer, the date of arrival at the registered location, the quantity released and the quantity that arrived.

Where a shipment is denied release at the port of entry for any reason, a shorter clock applies. The importer reports the denial and its reason within five business days, and the permit or declaration becomes void. No shipment denied release is allowed in until a new permit is issued or a new declaration is filed.

Neither report counts as filed on submission. The agency assigns a transaction identification number after receipt and review, and the report is not deemed filed until that number has been issued.

Quantity discrepancies have their own rule. Where a shipment exceeds the maximum authorized amount as determined at weighing, the difference is seized subject to forfeiture pending an explanation. Excesses under one percent may be released on an amended permit. If the substance is in the first schedule, it is summarily forfeited.

The customs side matches. Where first or second schedule substances are seized, the forfeitures officer contacts the drug agency official responsible for import permits, and where no permit was issued, declares the substances contraband and forfeited.

Sources

Each document below is named as it names itself, with the date printed on that document rather than the day it was read.

1. 21 CFR 1312.11, 1312.12 and 1312.13 — Requirement of authorization to import, the application contents and return information, and the four findings on which an import permit may issue, including the definition of a single shipment and the prohibition on importing certain substances by mail — Office of the Federal Register, Electronic Code of Federal Regulations, September 2026
2. 21 CFR 1312.14, 1312.15 and 1312.16 — Distribution of import permits and the prohibition on drop shipments, shipments in greater or less amount than authorized, and amendment, cancellation and the hundred-and-eighty-day expiration of an import permit — Office of the Federal Register, Electronic Code of Federal Regulations, September 2026
3. 21 CFR 1312.18 — Import declaration, its fifteen-day filing deadline, the four groups of required information, the transaction identification number that makes it valid, the emergency waiver, and the five-business-day report after a denied release — Office of the Federal Register, Electronic Code of Federal Regulations, September 2026
4. 21 CFR 1312.30 — Schedule III, IV, and V non-narcotic controlled substances specifically designated by the Administrator as requiring import and export permits — Office of the Federal Register, Electronic Code of Federal Regulations, September 2026
5. 19 CFR 162.45a — Summary forfeiture of Schedule I and Schedule II controlled substances, including the step where the forfeitures officer asks the drug agency whether a permit for lawful importation was issued — Office of the Federal Register, Electronic Code of Federal Regulations, September 2026