President Franklin D. Roosevelt signed Executive Order 7947 on August 9, 1938, designating Del Bonita, Montana, as a customs port in District No. 33. The order took effect thirty days later.
- Reference
- DB-A010
- Source reference
- Federal Register, August 11, 1938, p. 1965; Executive Order 7947
- Date
- 1938-08-11
- Date precision
- day
- What the date means
- Federal Register publication
- Source context
- This is a United States legal designation, not evidence of the Canadian office’s first operating day or the completion date of either country’s buildings.
- Creator
- United States federal government; Executive Order 7947
- Held by
- U.S. Government Publishing Office, GovInfo
- Research status
- Primary source reviewed; complete issue PDF preserved
- Rights
- United States federal government publication; preserve the issue, page, and order reference with any reproduction.
Original source
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Last reviewed: 2026-10-28.