Service Hubs and Facilities Locations

This document provides a list of service hub facilities, includes area, district, NASS, site, locale key, and start date.

2025 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2025.

2025 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2025.

Labeling List Changes Effective September 1, 2024

Effective September 1, 2024, we are revising Labeling List(s) L001, L002, L005, L007, L012, L014, L601, L602, L605, L606, and L607 to reflect changes in mail processing operations.

Labeling List Changes Effective September 1, 2024

Effective September 1, 2024, we are revising Labeling List(s) L001, L002, L005, L007, L012, L014, L601, L602, L605, L606, and L607 to reflect changes in mail processing operations.

Labeling Lists Order Form

This document contains the order form for Labeling Lists.

AIS Copyright/License Agreement

Zone Charts Order Form

This order form is used to subscribe to the National Zone Charts Matrix & Labeling Lists Products.

AIS Copyright/License Agreement

Labeling Lists Order Form

This document contains the order form for Labeling Lists.

Labeling List Changes Effective July 1, 2024

Effective July 1, 2024, we are revising Labeling List(s) L001, L009, L011, L012, L201, L606, and L607 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 July 1, 2024, effective date, but no later than August 31, 2024, expiration date. The changes will be published in the Postal Bulletin, Issue #22652.  

Labeling List Changes Effective April 1, 2024

This file has been temporarily removed and will be replaced as soon as possible. We are sorry for the inconvenience.   

Labeling List Changes Effective December 1, 2023

Effective December 1, 2023, we are revising Labeling List(s) L001, L007, L012, L201, L601, L605, 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 December 1, 2023, effective date, but no later than January 31, 2024, expiration date. The changes will be published in the Postal Bulletin, Issue #22637.  

2024 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2024.

2024 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2024.

Labeling List Changes Effective July 1, 2023

Effective July 1, 2023, we are revising Labeling List(s) L001, L002, L004, L005, L007, L008, L009, L011, L012, L015, L051, L201, L606, L607, and L801 to reflect changes in mail processing operations.

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.

Labeling Lists Technical Guide

The Labeling Lists data product assists mailers with presorting mail.

Labeling Lists Technical Guide

The Labeling Lists data product assists mailers with presorting mail.

Electronic Product Fulfillment (EPF) Web Access Request Form (PS 5116)

This form is used to create a Web-based account with the Addressing and Geospatial Technology (AGT) office which will be utilized to retrieve/download files from the Electronic Product Fulfillment (EPF) website.

Electronic Product Fulfillment (EPF) Web Access Request Form (PS 5116)

This form is used to create a Web-based account with the Addressing and Geospatial Technology (AGT) office which will be utilized to retrieve/download files from the Electronic Product Fulfillment (EPF) website.

Labeling List Changes Effective January 1, 2023

Effective January 1, 2023, we are revising Labeling List(s) L007, L009, L011, L012, L014, L201, and L606 to reflect changes in mail processing operations.

2023 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2023.

Labeling List Changes Effective October 1, 2022

Effective October 1, 2022, we are revising Labeling List(s) L001, L007, L012, L014, L015, L201, and L606 to reflect changes in mail processing operations.

Labeling List Changes Effective August 1, 2022

Labeling List Changes Effective August 1, 2022, we are revising Labeling List(s) L006, L007, L012, 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 August 1, 2022, effective date, but no later than September 30, 2022, expiration date. The changes will be published in the Postal Bulletin, Issue #22602. Labeling Lists  

Labeling List Changes Effective July 1, 2022

Effective July 1, 2022, we are revising Labeling List(s) L001, L006, L007, L012, L201, L606, and L607 to reflect changes in mail processing operations.

Labeling List Changes Effective April 1, 2022

Effective April 1, 2022, we are revising Labeling List(s) L006, L012, L201, and L606 to reflect changes in mail processing operations.

2022 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2022.

L051 Test Files for Parcel Select/Parcel Select Lightweight – DSCF Entry

For additional information, refer to the January 2022 Release Overview dated August 30, 2021 found on the PostalPro landing page under Featured Updates at https://postalpro.usps.com. 

L051 Test Files for Parcel Select/Parcel Select Lightweight – DSCF Entry

For additional information, refer to the January 2022 Release Overview dated August 30, 2021 found on the PostalPro landing page under Featured Updates at https://postalpro.usps.com. 

Labeling List Changes Beginning October 1, 2020

Effective October 1, 2020, we are revising Labeling List(s) L006, L007, L012, L201, and L606 to reflect changes in mail processing operations.

L004 3-Digit ZIP Code Prefix Groups: ADC Sortation

L004 describes the service area by individual 3-digit ZIP Code prefix for mail destined to an area distribution center (ADC).

L605 NDCs/ASFs: Nonmachinable Parcel Select

L605 describes the service area by individual 3-digit ZIP Code prefix for Parcel Select mailers preparing mailings of nonmachinable parcels.

L012 5 Digit ZIP Scheme Combination

The 5-Digit ZIP Scheme Combination Labeling List contains a listing of 5-digit ZIP Code schemes.

L003 3-Digit ZIP Code Prefix Groups: 3-Digit Scheme Sortation

L003 describes the 3-digit automation letters scheme sortation ZIP Code prefix list for trayed mail.

L601 National Distribution Centers (NDCs)

L601 describes the service area by individual 3-digit ZIP Code prefix for sorting mail to NDC destinations.

L607 3-Digit ZIP Code Sort Option for Drop-Ship Mailers

L607 lists the 5-digit ZIP Codes for machinable parcels eligible to be entered at designated SCFs when sorted into 3-digit containers.

L002 3-Digit ZIP Code Prefix Matrix

L002 lists every 3-digit Zip Code prefix for mail destined to 3-digit, 3-digit scheme, and sectional center facility (SCF) destinations.

L201 Periodicals Origin Split and First-Class Mail Mixed ADC/AADC

L201 describes the First-Class Mail surface transportation reach of an origin facility for use in preparing bundles and sacks of Periodicals mail (including Periodicals labeled "news") and in preparation of First-Class Mail mixed containers.

L005 3-Digit ZIP Code Prefix Groups: SCF Sortation

L005 describes the service area by individual 3-digit ZIP Code prefix for mail destined to a sectional center facility (SCF).

L000 NDC Labeling List

Current labeling lists on the FAST site.  

L801 AADCs: Letter-Size Mailings

L801 describes the service area by individual 3-digit ZIP Code prefix for automation rate letter-size mailings.

New L012 Labeling List

Effective March 3, 2014, the Postal Service™ will revise the Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM®) 235, 245, and 707 to refer to the use of Labeling List L012 as the source for 5-digit ZIP Code™ scheme combinations when preparing automation letters.