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FTZ 231 — Foreign-Trade Zone 231 — Port of Stockton
California · Stockton · Port of entry: CA, San Francisco
FTZ 231 is a Foreign-Trade Zone in Stockton, California, sponsored by the Port of Stockton, using San Francisco, California as its port of entry.
Foreign-Trade Zone 231 is administered by the Port of Stockton, the grantee responsible for overseeing FTZ activity in and around Stockton, California. The zone's port of entry is San Francisco, California, which serves as the customs entry point for goods moving into and out of the zone's designated service area.
A Foreign-Trade Zone is a designated area, secure under U.S. Customs and Border Protection supervision, where merchandise can be admitted for storage, assembly, manufacturing, or other processing before formal entry into U.S. commerce. Depending on the activity performed, companies operating within an FTZ may be able to defer, reduce, or in some cases eliminate certain customs duties on qualifying merchandise. This structure is generally used by importers, manufacturers, and distributors who bring in significant volumes of foreign-origin materials or components and want flexibility in how and when duties are calculated and paid.
Businesses located in or considering a facility within the Port of Stockton's service area may evaluate FTZ 231 as part of their supply chain and customs planning. Because FTZ designation involves specific procedures, recordkeeping, and coordination with U.S. Customs and Border Protection, companies typically work with a customs broker or an FTZ compliance consultant to determine whether their operation qualifies and to prepare the required documentation for site or subzone designation.
Who qualifies
How to apply
Questions people ask
What is FTZ 231?
FTZ 231 is a Foreign-Trade Zone located in Stockton, California, sponsored by the Port of Stockton.
Who is the grantee for FTZ 231?
The Port of Stockton is the grantee responsible for administering FTZ 231.
What area does FTZ 231 cover?
FTZ 231 covers a service area associated with the Port of Stockton in Stockton, California.
What port of entry does FTZ 231 use?
FTZ 231 uses the port of entry at San Francisco, California.
Do I need a customs broker to use an FTZ?
Most companies work with a customs broker or FTZ compliance consultant to determine whether their operation qualifies and to handle the required filings.
Is an FTZ the same as a bonded warehouse?
No, an FTZ and a bonded warehouse are different customs facilities with different rules, though both involve deferring or managing duties on imported goods.
How do I get subzone status for my own facility?
You would contact the Port of Stockton as grantee and follow the FTZ Board's application process to request subzone designation for a specific facility.
Does FTZ 231 guarantee duty savings?
The FTZ program allows for potential duty deferral, reduction, or elimination depending on the activity, but actual outcomes depend on each company's specific operations.
Where can I find the official application process?
The official FTZ Board application process is described at trade.gov's how-to-apply page.
Who typically uses FTZ 231?
Importers, manufacturers, and distributors operating within the Port of Stockton's service area are the typical users of FTZ 231.
Source: FTZ Board OFIS zone list (ofis.trade.gov). GetFundedUSA is independent and not affiliated with this zone's operator.