Export Controls Glossary: Key Terms Explained

Exporting spans customs, controls, and sanctions, and its terminology mixes U.S. mechanisms with international ones. This glossary defines the export terms that come up most — and flags the U.S. equivalent where a term is really a European or treaty concept. For the systems behind them, follow the cross-links to our full export-controls guides.

Schedule B Number

A Schedule B number is a 10-digit U.S. export classification code, administered by the Census Bureau and based on the international Harmonized System. Exporters use it to report shipments in the Automated Export System (the EEI filing). It parallels the HTS code used for imports — same first six digits, different last four — so an item’s import HTS and export Schedule B often differ in the final digits. It is separate from the ECCN, which governs licensing.

Non-Proliferation Treaty (NPT)

The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is the 1968 international treaty aimed at preventing the spread of nuclear weapons and technology. Its relevance to exporters is in export controls: nuclear and dual-use items tied to NPT obligations are tightly controlled (under the EAR’s nuclear provisions and the Nuclear Regulatory Commission/Department of Energy regimes), and proliferation is a prohibited end use that can require a license or bar a transaction outright regardless of the item’s ordinary classification.

Inward Processing Relief (IPR)

Inward Processing Relief (IPR) is an EU/UK customs procedure that suspends or relieves import duty on goods brought in to be processed and then re-exported. The U.S. analogs are duty drawback (refund of duties on imported inputs that are later exported) and the temporary importation under bond (TIB) and foreign-trade-zone programs. If you’re moving goods through the U.S. for processing and re-export, those are the mechanisms to use — see importing under a customs bonded warehouse.

Outward Processing Relief (OPR)

Outward Processing Relief (OPR) is the mirror image — an EU/UK procedure for temporarily exporting goods for processing or repair abroad and re-importing the finished product with duty charged only on the value added abroad. The closest U.S. equivalent is found in HTSUS Chapter 98 provisions for U.S. goods returned and for articles assembled abroad from U.S. components, which reduce the dutiable value on re-entry.

Cease-and-Desist Order (Sanctions)

A cease-and-desist order in the sanctions context is an enforcement directive — from a regulator such as the Treasury’s Office of Foreign Assets Control (OFAC) or another agency — requiring a party to stop conduct that violates sanctions or export laws. It often precedes or accompanies penalties. Receiving one is serious: it signals an active enforcement posture, and the right response is immediate legal review, not informal negotiation. Screening parties up front avoids most exposure — see denied- and restricted-party screening.

Frequently Asked Questions

What is a Schedule B number and how is it different from an HTS code?

A Schedule B number is a 10-digit U.S. export code (Census Bureau) used to report exports in the Automated Export System. An HTS code classifies imports. Both derive from the international Harmonized System and share the first six digits, but their last four digits can differ.

Does the United States use Inward and Outward Processing Relief?

Not by those names — IPR and OPR are EU/UK procedures. The U.S. achieves similar duty relief through drawback, temporary importation under bond (TIB), and foreign-trade zones for inward processing, and through HTSUS Chapter 98 provisions (U.S. goods returned / assembled abroad) for outward processing.

Why does the Non-Proliferation Treaty matter to exporters?

Because nuclear and dual-use goods connected to NPT obligations are tightly export-controlled. Proliferation is a prohibited end use that can require a license or bar a transaction regardless of the item’s ordinary classification, so end-use and end-user screening is essential.

What should I do if I receive a sanctions cease-and-desist order?

Treat it as a serious enforcement signal and get legal advice immediately. A cease-and-desist directs you to stop conduct a regulator views as violating sanctions or export law, and it can precede penalties. Strong up-front party screening is the best way to avoid one.

The fastest way to stay compliant is to know which regime — customs, controls, or sanctions — a term belongs to. Reidel Law Firm advises exporters on classification, licensing, and screening on flat-fee terms. Get an export compliance memo.