ACE (Automated Commercial Environment) (ACE)

Definition

The Automated Commercial Environment is the U.S. government's single-window system for processing import and export data. ACE is where customs brokers and carriers file entries, ISFs, and export declarations electronically. It replaced the older Automated Commercial System (ACS) as the primary trade processing platform.

Why it matters

All electronic customs filings to CBP go through ACE. The system interfaces with TMS platforms through the ABI (Automated Broker Interface) network. Understanding how data flows from source documents through the TMS and into ACE is necessary for anyone involved in customs compliance.

How data reaches ACE from a freight forwarder's workflow

A customs entry reaches ACE in three steps. First, the entry data is assembled from source documents: commercial invoice, packing list, and bill of lading. Second, the customs broker inputs the data into their TMS or customs software. Third, the software transmits the entry to ACE via the Automated Broker Interface (ABI), a network connection each licensed broker maintains with CBP. The ABI connection is the broker's responsibility, not the forwarder's. The forwarder's job is to provide accurate, complete source data so the broker's entry reflects the actual shipment. Errors caught at the ABI transmission step require correction and resubmission, which delays clearance.

ACE's single-window function for partner government agencies

ACE serves as the single-window system for multiple federal agencies, not just CBP. When an entry is filed through ACE, the data is automatically routed to partner government agencies (PGAs) whose regulations apply to the goods. The FDA reviews food, drugs, and medical devices. The USDA regulates agricultural products. The FWS handles wildlife. The CPSC covers consumer products. Each agency may issue a hold or request additional documentation through ACE. A shipment held by the FDA has a different release process than a CBP hold, with its own documentation requirements and examination procedures.

ACE entry types and their filing requirements

ACE handles multiple entry types with different filing requirements and timelines. The most common for ocean imports is the formal consumption entry (Type 01), which requires full classification, valuation, and duty payment. The duty-free exemption for shipments of $800 or less (Section 321) is suspended, under a rule dated June 24, 2026, so low-value shipments now need an entry that pays duty. Warehouse entries, transportation and exportation entries, and temporary import bonds each have their own requirements. Customs brokers who handle a forwarder's diverse customer base must be fluent in multiple entry types, which is part of the value they provide beyond the ABI connection alone.