Summary of Changes

Mailing Standards of the United States Postal Service,
International Mail Manual

Issued September 7, 2026

This Summary of Changes to Mailing Standards of the United States Postal Service, International Mail Manual (IMM®) includes revisions that have become effective during the previous 12 calendar months.

In chapters 1–9 and in “Country Price Groups and Weight Limits” of this online version of the IMM, change bars (vertical lines in the margin) indicate that Postal Bulletin updates have been incorporated in the adjacent text (note that the change bars appear only in the PDF version, and only for revisions that have become effective in the current calendar year, not for all the previous 12 months). However, in the individual country listings (ICLs) of this online IMM, change bars do not appear even though Postal Bulletin updates have been incorporated in the ICL text.

 

This chapter, subchapter, part, section, or ICL…

is…

effective…

as noted in Postal Bulletin issue…

Chapter 1, International Mail Services

Exhibit 116.1

revised to remove Post Exprès and Post Exprès design from the list.

10-30-2025

22688

revised to remove USPS Web Tools from the list.

4-2-2026

22699

122.1d

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

122.23

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

Exhibit 123.61

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

123.621

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

123.712f

revised to reflect changes to mailable dangerous goods as a category of items on customs forms.

8-6-2026

22708

123.722e

revised to reflect changes to mailable dangerous goods as a category of items on customs forms.

8-6-2026

22708

134.1a

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

135.12

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

135.31

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

135.5a

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

141.4

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

141.6

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

142.4a

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

142.5

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

152.21

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

152.33

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

152.4

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

152.61

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

152.633

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

Exhibit 152.64

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

Chapter 2, Conditions for Mailing

221.2

revised to reflect changes to Priority Mail Express International with Money-Back Guarantee Service to Thailand.

2-19-2026

22696

222.73

revised to add USPS Delivered Duty Paid (DDP) service details.

1-18-2026

22693

225.11

revised to replace USPS Web Tools system with USPS API platform.

4-2-2026

22699

232.1

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

232.3

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

232.5

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

232.93

revised to add USPS Delivered Duty Paid (DDP) service details.

1-18-2026

22693

235.11

revised to replace USPS Web Tools system with USPS API platform.

4-2-2026

22699

242.2

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

245.11

revised to replace USPS Web Tools system with USPS API platform.

4-2-2026

22699

Exhibit 252.22

revised to reflect that nine additional countries offer Electronic USPS Delivery Confirmation International service.

1-18-2026

22687

revised to reflect that fifteen additional countries offer Electronic USPS Delivery Confirmation International service.

4-30-2026

22701

revised to reflect that Martinique no longer offers Electronic USPS Delivery Confirmation International service.

4-30-2026

22701

252.23

revised to reflect that the Post Exprès logo is no longer in use.

10-30-2025

22688

252.25

revised to replace USPS Web Tools system with USPS API platform.

4-2-2026

22699

252.5

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

252.53

revised to add USPS Delivered Duty Paid (DDP) service details.

1-18-2026

22693

253.231

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

254.3

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

255.11

revised to replace USPS Web Tools system with USPS API platform.

4-2-2026

22699

261.1

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

261.22

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

Exhibit 261.3

revised to reflect changes to the list of countries that do not offer M-bag service.

2-5-2026

22695

revised to reflect changes to the list of countries that do not offer M-bag service.

2-19-2026

22696

262

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

263.1

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

264.22

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

272.6a

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

Exhibit 292.45a

revised to reflect a change in Foreign Office of Exchange Codes and Price Groups for French Guiana, Guadeloupe, Martinique, and Reunion.

1-18-2026

22693

revised to reflect a change in Foreign Office of Exchange Codes and Price Groups for San Marino.

4-30-2026

22701

Exhibit 292.532

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

293

revised to reflect the discontinuation of ISAL service as a competitive product.

1-18-2026

22691

Chapter 3, Extra Services

Exhibit 322.2

revised to update the Priority Mail Express International and Priority Mail International insurance limits for Belgium.

1-1-2026

22692

332

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

333.2

revised to reflect changes to the indemnity limit for Registered Mail items.

1-1-2026

22690

334.11

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

360

revised to add USPS Delivered Duty Paid (DDP) service details.

1-18-2026

22693

362

revised to add additional USPS Delivered Duty Paid (DDP) service details.

7-23-2026

22707

Exhibit 362

revised to add twenty-one additional countries: Andorra, Austria, Belgium, Denmark, Estonia, Finland, France, French Guiana, Guadeloupe, Italy, Luxembourg, Malta, Martinique, Mayotte, Monaco, Netherlands, Portugal, Reunion, Slovak Republic (Slovakia), Spain, and Sweden.

7-23-2026

22707

Chapter 7, Treatment of Inbound Mail

713.522

revised to reflect changes to the Customs and Border Protection address used when returning duty collection forms.

11-27-2025

22690

713.54

revised to reflect changes to the Customs and Border Protection address used when returning duty collection forms.

11-27-2025

22690

Chapter 9, Inquiries, Indemnities, and Refunds

934.12

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

934.2

revised to reflect changes to the indemnity limit for Registered Mail items.

1-1-2026

22690

943.1b

revised to reflect changes in service for Registered Mail.

1-1-2026

22690

Country Price Groups and Weight Limits

Table Format Change

revised to add “Suspended” to the GXG column header and remove the information from those columns in the table.

1-18-2026

22693

French Guiana, Guadeloupe, Martinique, and Reunion

revised to reflect changes to these four entries.

1-18-2026

22693

Individual Country Listings

Each country that accepts Registered Mail service

revised to reflect changes to the indemnity limit and service availability for Registered Mail items. The changes apply to every country except Iraq, North Korea, Montenegro, and Somalia.

1-1-2026

22690

Each country that does not offer M–bag service

revised to list M-bag service as “Not Available” for the following French Overseas Territories: French Guiana, Guadeloupe (including Saint Bartholomew and Saint Martin), Martinique, Reunion, and Saint Pierre and Miquelon.

2-19-2026

22696

Each country that does not offer USPS Delivered Duty Paid (DDP) service

revised to list USPS Delivered Duty Paid (DDP) service as “Not Available” for every country, except Canada, Germany, and United Kingdom of Great Britain and Northern Ireland.

1-18-2026

22693

Andorra

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Argentina

revised to reflect changes to the Observations section.

2-19-2026

22696

Austria

revised to reflect that USPS Delivered Duty Paid (DDP) service is available for certain items.

7-23-2026

22707

Belgium

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Belarus

revised to reflect changes to the Prohibitions section.

4-30-2026

22701

Canada

revised to reflect changes to the Extra Services section.

1-18-2026

22693

revised to reflect changes to the USPS Delivered Duty Paid (DDP) service section.

7-23-2026

22707

Chile

revised to reflect changes to the Observations section.

12-25-2025

22692

Denmark

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Estonia

revised to reflect that USPS Delivered Duty Paid (DDP) service is available for certain items.

7-23-2026

22707

Finland

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

France

revised to include Mayotte in the title.

2-19-2026

22696

revised to reflect changes to the Observations section.

3-19-2026

22698

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

French Guiana

revised to reflect revisions to the Price Groups for Priority Mail Express International, Priority Mail International, and First-Class Mail International Service.

1-18-2026

22693

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Germany

revised to reflect changes to the Observations section.

12-25-2025

22692

revised to reflect changes to the Extra Services section.

1-18-2026

22693

revised to reflect changes to the USPS Delivered Duty Paid (DDP) service section.

7-23-2026

22707

Guadeloupe

revised to reflect revisions to the Price Groups for Priority Mail Express International, Priority Mail International, and First-Class Mail International Service.

1-18-2026

22693

revised to reflect changes to the Observations section.

3-19-2026

22698

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Guatemala

revised to reflect changes to the Observations section.

2-5-2026

22695

Indonesia

revised to reflect changes to the Observations section.

1-18-2026

22691

Italy

revised to reflect that USPS Delivered Duty Paid (DDP) service is available for certain items.

7-23-2026

22707

Iran

revised to reflect changes to the Restrictions and Observations sections.

7-23-2026

22707

Iraq

revised to reflect changes to the Prohibitions section.

10-16-2025

22687

revised to reflect changes to the Prohibitions section.

12-25-2025

22692

revised to reflect changes to the Observations section.

3-19-2026

22698

Japan

revised to reflect changes to the Prohibitions section.

2-5-2026

22695

Laos

revised to reflect changes to the Observations section.

10-16-2025

22687

Libya

revised to reflect changes to the Observations section.

1-18-2026

22691

Lithuania

revised to reflect that M-bag service is no longer available.

2-5-2026

22695

Luxembourg

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Malta

revised to reflect that USPS Delivered Duty Paid (DDP) service is avaiable for certain items.

7-23-2026

22707

Martinique

revised to reflect revisions to the Price Groups for Priority Mail Express International, Priority Mail International, and First-Class Mail International service.

1-18-2026

22693

revised to reflect changes to the Observations section.

3-19-2026

22698

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Mayotte

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Moldova

revised to reflect changes to the Prohibitions and Restrictions sections.

4-16-2026

22700

Monaco

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Netherlands

revised to reflect that USPS Delivered Duty Paid (DDP) service is avaiable for certain items.

7-23-2026

22707

Panama

revised to reflect changes to the Prohibitions and Restrictions sections.

4-30-2026

22701

revised to reflect changes to the Restrictions section.

7-23-2026

22707

Paraguay

revised to reflect changes to the Observations section.

4-30-2026

22701

Portugal

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Reunion

revised to reflect revisions to the Price Groups for Priority Mail International and First-Class Mail International Service.

1-18-2026

22693

revised to reflect changes to the Observations section.

3-19-2026

22698

revised to reflect that USPS Delivered Duty Paid (DDP) service is required for certain items.

7-23-2026

22707

Saudia Arabia

revised to reflect changes to the Prohibitions section.

3-5-2026

22697

Slovak Republic (Slovakia)

revised to reflect that USPS Delivered Duty Paid (DDP) service is avaiable for certain items.

7-23-2026

22707

Spain

revised to reflect that USPS Delivered Duty Paid (DDP) service is avaiable for certain items.

7-23-2026

22707

Sweden

revised to reflect that USPS Delivered Duty Paid (DDP) service is avaiable for certain items.

7-23-2026

22707

Thailand

revised to reflect changes to the Observations section.

2-5-2026

22695

revised to reflect changes to the Note section under Customs Forms Required (123).

2-19-2026

22696

Turkiye, Republic of

revised to reflect changes to the Observations section.

12-25-2025

22692

revised to reflect changes to the Observations section.

3-5-2026

22697

United Arab Emirates

revised to reflect changes to the Observations section.

4-16-2026

22700

United Kingdom of Great Britain and Northern Ireland

revised to reflect changes to the Extra Services section.

1-18-2026

22693

revised to reflect changes to the USPS Delivered Duty Paid (DDP) service section.

7-23-2026

22707

Venezuela

revised to reflect changes to the Prohibitions section.

2-5-2026

22695