Border crossing

Windsor–Detroit crossing codes

At Windsor - Ambassador Bridge the CBSA office code is 0453. If the goods left the United States through Detroit, Michigan, the US port code is 3801. Windsor Tunnel uses CBSA office 0452.

Canada · CBSA office
0453 Windsor - Ambassador Bridge0452 Windsor Tunnel
United States · US port of exit
3801 Detroit, Michigan
Province
Ontario
Map of the Windsor–Detroit border crossing
The Windsor–Detroit crossing. 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.

Warehouses at 0453, 0452

12 active warehouse codes report to the Canadian side. Goods can wait in one until CBSA releases them.

Nearby crossings

Good to know

  • 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.

  • New · July 27, 2026

    Gordie Howe International Bridge. CBSA added an export office for the new Windsor–Detroit bridge. Its code will appear here once it is on CBSA’s published list.

Questions

What is the CBSA office code for Windsor - Ambassador Bridge?

0453, on the Canadian side of the Windsor–Detroit crossing.

What is the CBSA office code for Windsor Tunnel?

0452, on the Canadian side of the Windsor–Detroit crossing.

What is the US port code for Detroit, Michigan?

3801, on the US side of the Windsor–Detroit crossing.

Sources: Directory of CBSA offices and services, Canada Border Services Agency; Ports of entry, U.S. Customs and Border Protection; Memorandum D17-1-10, Coding of Customs Accounting Documents, Canada Border Services Agency; Sub-location codes for customs sufferance warehouses, Canada Border Services Agency, version of July 27, 2026.

Which US port faces which CBSA office is matched by location; neither agency publishes it as a list.

Adhoc is not affiliated with CBSA or CBP.

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