Labeling List Changes Effective April 1, 2023

Effective April 1, 2023, we are revising Labeling List(s) L001, L007, L009, L011, L012, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings that are inducted on or after the April 1, 2023, effective date, but no later than May 31, 2023, expiration date. The changes will be published in the Postal Bulletin, Issue #22620.

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