US Customs and Border Protection (CBP) processes imports through the Automated Commercial Environment (ACE), the single window through which importers and brokers file entry documentation, pay duties, and coordinate with partner government agencies. Understanding ACE is essential for any business importing into the United States.
Filing through ACE
ACE consolidates customs and partner-government-agency requirements into one electronic portal. Importers must file entry summary information, pay duties, and where required obtain release from agencies such as the FDA, EPA, or USDA. Most filings are made by a licensed customs broker on the importer's behalf, using a valid power of attorney and the importer's Importer of Record number (CBP assigned).
Working with a licensed broker
While direct filing is possible, most US importers use a licensed customs broker for accuracy and speed. The broker classifies goods under the Harmonized Tariff Schedule of the United States (HTSUS), calculates duties, and manages partner agency requirements. Selecting a competent, standards-assessed broker reduces the risk of misclassification, penalty exposure, and supply chain delays.
Best practice for US importers: maintain a current HTSUS classification database, document country-of-origin determinations, and keep records for five years as CBP requires. Partnering with a broker inside a verified trade standards network adds an additional layer of assurance around competence and compliance.
