Effective June 26, 2025, the Postal Service™ will revise Mailing Standards of the United States Postal Service, International Mail Manual (IMM®), Exhibit 292.45a and Exhibit 293.45a, to reflect a change to the office of exchange code for Bonaire, Sint Eustatius, and Saba. Items sent to Bonaire, Sint Eustatius, and Saba will have separate codes listed as Bonaire via Curacao “CUR,” and Sint Eustatius and Saba will be added to the entry for Sint Maarten “SXM,” for the following services:
n International Priority Airmail® (IPA®); and
n International Priority Surface Air Lift® (ISAL®).
This revision is based on current international transportation routing. To provide mailers sufficient time to make necessary logistical and software changes, the Postal Service (through this Postal Bulletin article) is providing advance notice that mailers must begin using the appropriate foreign office of exchange code for IPA and ISAL items by September 28, 2025. However, mailers are encouraged to immediately implement this change to expedite delivery.
Mailing Standards of the United States Postal Service, International Mail Manual (IMM)
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2 Conditions for Mailing
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290 Commercial Services
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292 International Priority Airmail (IPA) Service
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292.4 Mail Preparation
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292.45 IPA Foreign Office of Exchange Codes and Price Groups
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Exhibit 292.45a
IPA Foreign Office of Exchange Codes and Price Groups
[Revise the entry for Bonaire, Sint Eustatius, and Saba to read as follows (reflecting the separation of Bonaire from Sint Eustatius and Saba via Curacao):]
[Revise the entry for Sint Maarten to read as follows (reflecting the separation of Sint Eustatius and Saba from Bonaire and adding Sint Eustatius and Saba to Sint Maarten):]
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293 International Surface Air Lift (ISAL) Service
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293.4 Mail Preparation
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293.45 ISAL Foreign Office of Exchange Codes and Price Groups
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Exhibit 293.45a
ISAL Foreign Office of Exchange Codes and Price Groups
[Revise the entry for Bonaire, Sint Eustatius, and Saba to read as follows (reflecting the separation of Bonaire from Sint Eustatius and Saba via Curacao):]
[Revise the entry for Sint Maarten to read as follows (reflecting the separation of Sint Eustatius and Saba from Bonaire and adding Sint Eustatius and Saba to Sint Maarten):]
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Although effective June 26, 2025, the Postal Service will incorporate these revisions into a later edition of the online IMM, which is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 6-26-25
