Customs Broker Knowledge Base

Complete guide to obtaining and maintaining a U.S. Customs Broker License under 19 CFR Part 111.

Understanding the broker's duty of responsible supervision under 19 CFR 111.28, the most tested compliance topic.

Record retention obligations, document types, and the (a)(1)(A) list under 19 CFR 163.

Overview of formal, informal, and special entry types used in U.S. imports under 19 CFR Part 141-143.

Field-by-field guide to the Entry Summary form, the most critical document in customs entry.

ISF requirements, filing timelines, data elements, and penalties for non-compliance.

How to classify goods using the Harmonized Tariff Schedule and the General Rules of Interpretation.

Detailed breakdown of each GRI rule with practical examples for exam preparation.

Understanding transaction value as the basis for customs valuation under 19 USC 1401a.

When buyer-provided goods, tools, designs, or engineering work must be added to customs value.

GSP, USMCA, FTAs, and other preferential tariff programs that reduce or eliminate duties.

Penalty framework for negligence, gross negligence, and fraud in customs transactions.

How voluntary disclosure of customs violations can significantly reduce penalty exposure.

How FTZs provide duty deferral, inverted tariff benefits, and operational flexibility.

Types of bonded warehouses, permitted operations, time limits, and withdrawal procedures.

Overview of manufacturing drawback, unused merchandise drawback, and rejected goods drawback.

Marking rules under 19 USC 1304, substantial transformation, and common exceptions.

Single entry bonds, continuous bonds, bond sufficiency, and surety requirements.

POA requirements, types, revocation, and the relationship between importers and customs brokers.