--- title: "CBSA office 0503: Gretna · Adhoc" description: "0503 is the CBSA office code for Gretna, Manitoba. US port across: 3404 Neche, North Dakota." canonical: "https://www.adhocs.ca/cbsa-offices/0503" last_updated: 2026-07-27 --- # 0503 Gretna in Manitoba CBSA office · Land border crossing 0503 is the CBSA office code for Gretna, a land border crossing in Manitoba. No warehouse code reports to it. - **Office code:** 0503 - **Type:** Land border crossing - **Province:** [Manitoba](https://www.adhocs.ca/cbsa-offices/manitoba) - **Warehouse codes:** 0 active - **Across the border:** [3404](https://www.adhocs.ca/us-ports-of-exit/3404) Neche, North Dakota; [Gretna–Neche](https://www.adhocs.ca/border-crossings/gretna-neche) ## Warehouse codes report to 0503 No warehouse code reports to 0503. ## US ports of exit near 0503 The land crossings nearest this office, each with the US port across from it. Distances are in a straight line, not by road. - [Gretna–Neche](https://www.adhocs.ca/border-crossings/gretna-neche): [0503](https://www.adhocs.ca/cbsa-offices/0503) Gretna ⇄ [3404](https://www.adhocs.ca/us-ports-of-exit/3404) Neche, North Dakota - [Emerson–Pembina, about 25 km](https://www.adhocs.ca/border-crossings/emerson-pembina): [0502](https://www.adhocs.ca/cbsa-offices/0502) Emerson Commercial ⇄ [3401](https://www.adhocs.ca/us-ports-of-exit/3401) Pembina, North Dakota - [Winkler–Walhalla, about 30 km](https://www.adhocs.ca/border-crossings/winkler-walhalla): [0518](https://www.adhocs.ca/cbsa-offices/0518) Winkler ⇄ [3407](https://www.adhocs.ca/us-ports-of-exit/3407) Walhalla, North Dakota ## Using 0503 on a declaration 1. Enter 0503 as the CBSA office where the goods are released. 2. If the goods wait in a sufferance or bonded warehouse, add its sub-location code next to the office code. 3. If the goods were exported from the United States, add the US port they left through. ## Good to know - **Same digits, two places.** As a CBSA office code, 0503 is Gretna. As a US port of exit, it is Melville, Rhode Island. The line on the form says which list it asks for. - **Courier shipments.** Low-value courier shipments name 1001, New York, as the US port of exit. ## Other offices nearby - [0502](https://www.adhocs.ca/cbsa-offices/0502) Emerson Commercial (Land border crossing · about 25 km) - [0518](https://www.adhocs.ca/cbsa-offices/0518) Winkler (Land border crossing · about 30 km) - [0519](https://www.adhocs.ca/cbsa-offices/0519) Windygates (Land border crossing · about 50 km) - [0516](https://www.adhocs.ca/cbsa-offices/0516) Tolstoi (Land border crossing · about 55 km) - [0517](https://www.adhocs.ca/cbsa-offices/0517) Piney (Land border crossing · about 95 km) Also in this directory: [Warehouse codes](https://www.adhocs.ca/cbsa-warehouses) · [US ports of exit](https://www.adhocs.ca/us-ports-of-exit) · [Border crossings](https://www.adhocs.ca/border-crossings) ## Questions ### What is CBSA office 0503? Gretna: a land border crossing in Manitoba. 0503 is its four-digit CBSA office code. ### Which warehouses report to office 0503? None. No warehouse sub-location code on CBSA’s list reports to 0503. ### Which US port is across from 0503? 3404 Neche, North Dakota. Both codes are on the Gretna–Neche crossing page. ### Is 0503 a US port code too? As a CBSA office code, 0503 is Gretna. As a US port of exit, it is Melville, Rhode Island. The line on the form says which list it asks for. ## Sources - [Directory of CBSA offices and services](https://www.cbsa-asfc.gc.ca/do-rb/menu-eng.html), Canada Border Services Agency - [Sub-location codes for customs sufferance warehouses](https://www.cbsa-asfc.gc.ca/import/codes/sw-ea-eng.html), Canada Border Services Agency, version of July 27, 2026 - [Ports of entry](https://www.cbp.gov/contact/ports), U.S. Customs and Border Protection - [Memorandum D17-1-10, Coding of Customs Accounting Documents](https://www.cbsa-asfc.gc.ca/publications/dm-md/d17/d17-1-10-eng.html), Canada Border Services Agency Office types and map positions are ours: the type is read from the office’s name, and each office is placed at its town. 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.