Effective August 1, 2026, the Postal Service™ will revise Labeling List(s) L002, L005, L012, L016, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the August 1, 2026, effective date through the September 30, 2026, expiration date.
Labeling Lists
L002 3-Digit ZIP Code Prefix Matrix
Changes
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L005 3-Digit ZIP Code Prefix Groups — SCF Letter Sortation
Changes
L012 5-Digit ZIP Scheme Combination
Due to the extensive number of changes to the L012, these changes will not be published in the Postal Bulletin. The changes effective August 1, 2026, for the L012 can be found in Postal Pro at the following link: postalpro.usps.com/operations/labeling-lists/changes-august-2026.
All other EELLs changes effective August 1, 2026, can be found in Postal Pro as well.
L016 3 Digit ZIP Code Prefix Groups —SCF Flat Sortation
Changes
* * * * *
L051 DSCF for Parcel Select / Market-Dominant Parcels
Changes
L201 Periodicals Origin Split and First-Class Mail Mixed ADC/AADC
Due to the extensive number of changes to the L201, these changes will not be published in the Postal Bulletin. The changes effective August 1, 2026, for the L201 can be found in Postal Pro at the following link: postalpro.usps.com/operations/labeling-lists/changes-august-2026.
All other EELLs changes effective August 1, 2026, can be found in Postal Pro as well.
L606 5-Digit Scheme — Standard Mail, First-Class Mail, and Package Services Parcels
Due to the extensive number of changes to the L606, these changes will not be published in the Postal Bulletin. The changes effective August 1, 2026, for the L606 can be found in Postal Pro at the following link: postalpro.usps.com/operations/labeling-lists/changes-august-2026.
All other EELLs changes effective August 1, 2026, can be found in Postal Pro as well.
— Logistics, Network Development, and Support,
Network Operations, 7-9-26
