The short answer

Every FDA-regulated line on a U.S. customs entry carries an FDA product code — a 5- to 7-character code that tells FDA exactly what the product is — and, depending on the product, one or more Affirmation of Compliance (AofC) codes that point FDA to the registration, listing or filing behind it. Wrong codes are one of the easiest ways to get a shipment held for review, because FDA’s screening system (PREDICT) scores each line on this data.

How an FDA product code is built

PartCharactersExample (38BEE27)
Industry2 numbers (02–98)38 — Soup
Class1 letterB — Soup, concentrated
Subclass1 letter or hyphen — container or packagingE — Metal container
Process Indicator Code (PIC)1 letter or hyphen — process, storage or dosage formE — Commercially sterile
Product2 letters or numbers27 — Tomato soup, concentrated

Use FDA’s online Product Code Builder to build the code. FDA expects the code to match the product name and invoice description.

⚠️ Common mistakes: coding a frozen product as ambient, coding canned food without the commercially sterile process, using a generic “other” product group, or one code for a mixed shipment. A mismatch with the invoice is a reason for FDA to hold the line for review.

Common Affirmation of Compliance codes

CodeMeaningUsed for
PFRManufacturer’s food facility registration numberFood
FMEFood facility registration exemption, with a reason codeFood from an exempt facility
FCEFood Canning Establishment numberLow-acid canned and acidified foods — see FCE and SID
SIDSubmission identifier for the process filingLow-acid canned and acidified foods
COSCosmetic registration numberCosmetics
REG / DLSDrug establishment registration number / drug listing number or NDCDrugs — see NDC numbers
DEV / LSTDevice foreign manufacturer registration / device listing numberMedical devices
PM#Premarket number, such as a 510(k) (K…), PMA (P…) or De Novo (DEN…)Medical devices

FDA’s official list (March 10, 2026) warns that declaring a code that is not on the list results in an entry rejection. Some codes are mandatory for certain products; FDA says sending voluntary codes along with the mandatory ones may speed up screening.

What exporters should send their broker

  1. 1A product list with codesOne FDA product code per product, built in the Product Code Builder and matching the invoice description.
  2. 2Registration numbersFood facility registration, cosmetic registration, drug or device registration — whatever applies to the manufacturer.
  3. 3Product-level numbersFCE and SID for canned foods, NDC for drugs, listing and 510(k) numbers for devices.
  4. 4Prior Notice details for foodFiled before arrival. See Prior Notice filing.

Example: canned tuna from Thailand

A Thai canner exports tuna in oil in cans. It gives its U.S. customs broker one product code built for canned fish in a metal container with a commercially sterile process, its food facility registration number for PFR, and its FCE and SID numbers for the specific can size and process. Each invoice line uses the same product name as the code description, so FDA’s screening system has nothing to question.

Shipping food to the US?

FDA food facility registration with U.S. Agent from $300. FCE registration assistance $550. SID process filing $350. Prior Notice $15 per shipment.

Prior Notice filing →

Frequently asked questions

Who chooses the FDA product code?

The entry filer (usually the customs broker) submits it, but the exporter and importer know the product best and should supply it.

How many characters is an FDA product code?

Five to seven, made of industry, class, subclass, process indicator and product parts.

Are Affirmation of Compliance codes mandatory?

Some are mandatory depending on the product; others are voluntary but may speed up screening. A code not on FDA’s list causes an entry rejection.

What AofC codes do canned foods need?

Low-acid canned and acidified foods use FCE (Food Canning Establishment number) and SID (process filing identifier).

Sources

Codes checked on November 12, 2026. This article is general information, not legal advice.