Rule
Published October 19, 2026
91 FR 66002
New Mailing Standards for Live Animals
The Postal Service is revising Publication 52, Hazardous, Restricted, and Perishable Mail (Pub 52), to improve package integrity and container identification for live animal shipments during processing and handling.
What this item does
The short version, using the agency's own summary text.
The Postal Service is revising Publication 52, Hazardous, Restricted, and Perishable Mail (Pub 52), to improve package integrity and container identification for live animal shipments during processing and handling.
Final rule.
Important dates
The dates that matter most for this item.
Published
October 19, 2026
Starts
October 19, 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