US port of exit · Airport

4581Midamerican Airport, Illinois US port of exit

4581 is the US code for the port of Midamerican Airport, Illinois. A Canadian declaration uses it when goods left the United States through Midamerican Airport.

Port code: 4581
Port: Midamerican Airport
State: Illinois
CBP district: St. Louis, MO
Kind: Airport

Map showing US port 4581, Midamerican Airport, Illinois — 4581 and the CBSA offices near it. Select a dot for its code. Each office sits at its town and each US port at its city, not at a street address. Map data: Natural Earth.

Other US ports in Illinois

Good to know

4581
Also a US port code. 4581 is also the US port of exit code for Midamerican Airport, Illinois. Warehouse and US port codes go on different lines of a declaration.
US port of exit
Which US port. CBSA defines it as the US port where the truck or train crosses into Canada, or the one nearest to where it crosses. For goods sent by ship or plane, it is the US port where they were loaded.
1001
Courier shipments. Low-value courier shipments name 1001, New York, as the US port of exit.

Questions

What is US port code 4581?

The code for the port of Midamerican Airport, Illinois. On a Canadian declaration, it says the goods left the United States through it.

Sources: Ports of entry, U.S. Customs and Border Protection; Memorandum D17-1-10, Coding of Customs Accounting Documents, Canada Border Services Agency.

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