Rule
Published March 31, 2026
91 FR 15886
Parcel Dimension Compliance
The Postal Service is amending Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM[supreg]) in various sections to expand the current requirement to include accurate parcel dimensions in a manifest.
What this item does
The short version, using the agency's own summary text.
The Postal Service is amending Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM[supreg]) in various sections to expand the current requirement to include accurate parcel dimensions in a manifest.
Final rule.
Important dates
The dates that matter most for this item.
Published
March 31, 2026
Starts
July 12, 2026
Who published it
The agencies listed in the official filing.
Postal Service
Federal rulebook sections mentioned
These are the parts of the Code of Federal Regulations cited in the filing.
Title 39, Part 111