Several price changes will take effect Sunday, June 23.
There will be dimensional weight changes that will affect Parcel Select, Priority Mail and Priority Mail Express.
Mailers will be required to provide dimensions when a parcel measures over 1 cubic foot for Priority Mail Express; Priority Mail (all zones); and Parcel Select (all zones and entries), except Parcel Select Lightweight service.
There also will be postage statement updates associated with these price changes.
Additionally, First-Class Mail International flat pieces, which are currently available for up to 4 pounds, will be limited to 15.999 ounces, beginning June 23.