INTERNATIONAL TRADE LAW
Sanctions Screening Checklist: Vet Every Party

Sanctions screening is the process of checking every customer, vendor, bank, and counterparty against U.S. government restricted-party lists before money or goods change hands. It is the single most important control in any sanctions compliance program, because a U.S. person who deals — even unknowingly — with a blocked party can face strict-liability civil penalties. This checklist walks through what to screen, which lists to use, and how to resolve and document a potential hit.
Screening is one of the internal controls OFAC expects under its sanctions compliance checklist framework. Done well, it turns a vague legal duty into a repeatable step your team runs on every deal.
What to Screen
Screen every party to a transaction, not just the named buyer. The obligation runs to anyone you transact with, so a complete screen captures the full chain of a deal.
- Customers and end users, including the ultimate consignee, not just the broker or freight forwarder.
- Vendors, suppliers, and subcontractors who receive your payments.
- Banks and intermediaries named in a letter of credit or wire instruction.
- Owners, principals, and beneficial owners of any entity counterparty.
- Shipping and logistics parties — vessels, ports, and carriers can themselves be listed.
Screen at onboarding, before each transaction, and again whenever the lists change. OFAC updates its lists frequently and without warning, so a party that cleared last quarter may be listed today.
Which Lists to Check
OFAC publishes two core lists, and most exporters also screen the Commerce and State restricted-party lists in the same pass.
| List | Maintained by | What it covers |
|---|---|---|
| Specially Designated Nationals (SDN) List | OFAC | Blocked individuals, entities, and vessels; all property frozen, dealings prohibited |
| Consolidated Sanctions List | OFAC | Non-SDN programs (e.g., sectoral and menu-based restrictions) — less than a full block |
| Denied Persons / Entity List | Commerce (BIS) | Parties denied export privileges or subject to license requirements |