Effective February 19, 2026, the Postal Service™ is revising Mailing Standards of the United States Postal Service, International Mail Manual (IMM®), subchapter 260 and Individual Country Listings, to reflect changes to M–bag® service availability to French overseas regions, departments, and collectivities (herein referred to as “French overseas territories”).
These revisions are based on correspondence between the U.S. Postal Service® and La Poste, the designated postal operator for France, including French overseas territories. The Postal Service is updating IMM subchapter 260 and the Individual Country Listings to reflect that M-bag service will no longer be available to the following locations:
n French Guiana.
n Guadeloupe (including Saint Bartholomew and Saint Martin).
n Martinique.
n Mayotte.
n Reunion.
n Saint Pierre and Miquelon.
Mailing Standards of the United States Postal Service, International Mail Manual (IMM)
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2 Conditions for Mailing
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260 Direct Sacks of Printed Matter to One Addressee (M-bags)
261 Description
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261.3 Availability
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[Revise Exhibit 261.3 to read as follows:]
Exhibit 261.3
Countries For Which M-Bag Service Is Not Available
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Individual Country Listings
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[For French overseas territories that will no longer offer M–bag service (i.e., French Guiana, Guadeloupe (including Saint Bartholomew and Saint Martin), Martinique, Reunion, and Saint Pierre and Miquelon), replace the current ICL text to read as follows:]
Airmail M-bags (260)
NOT Available
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[Revise the title to include “Mayotte” to read as follows:]
France (Includes Corsica, Mayotte, and Monaco)
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Although effective February 19, 2026, the Postal Service will incorporate these revisions into the next edition of the online IMM, which is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 2-19-26
