Effective May 1, 2026, the Postal Service™ will revise Labeling List(s) L007, L012, L014, 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 May 1, 2026, effective date through the June 30, 2026, expiration date.
Labeling Lists
L007 5-Digit Scheme — Periodicals, Standard Mail, and Package Services Flats in Bundles
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Newly Added
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L012 5-Digit ZIP Scheme Combination
Changes
Newly Added
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L014 5-Digit ZIP Scheme Combinations for Hubs
Due to the extensive number of changes to L014, these changes will not be published in the Postal Bulletin. The changes effective May 1, 2026, for the L014 can be found in Postal Pro at the following link: postalpro.usps.com/operations/labeling-lists/changes-may-2026. All other EELLs changes effective May 1, 2026, can be found in Postal Pro as well.
L016 3-Digit ZIP Code Prefix Groups — SCF Flat Sortation
Changes
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L051 DSCF for Parcel Select / Market-Dominant Parcels
Changes
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L201 Periodicals Origin Split and First-Class Mail Mixed ADC/AADC
Due to the extensive number of changes to L201, these changes will not be published in the Postal Bulletin. The changes effective May 1, 2026, for the L201 can be found in Postal Pro at the following link: postalpro.usps.com/operations/labeling-lists/changes-may-2026. All other EELLs changes effective May 1, 2026, can be found in Postal Pro as well.
L606 5-Digit Scheme —Standard Mail, First-Class Mail, and Package Services Parcels
Changes
Newly Added
Deleted
— Logistics, Network Development, and Support,
Network Operations, 4-16-26
