DELIVERY - WestPac Area: California 6 District - Wrightwood Post Office and Lytle Post - Resume Operations

INFORMATIONAL: USPS APIs System Deployment - January 10, 2026

Labeling List Changes Effective February 1, 2026

Effective February 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 February 1, 2026, effective date through March 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22694.

DELIVERY - Wrightwood Post Office (92397) - Temporarily Closed

DELIVERY - Lytle Creek Post Office (92358) - Temporarily Closed

INFORMATIONAL - USPS APIs System Maintenance January 14, 2026

PTR2 Release Notes_DD_01_10_26

INFORMATIONAL - Postal Service Files Requests for New Rules on Market Dominant Rates

INFORMATIONAL - MGI Important Dates

INFORMATIONAL - January Price Change 2026 - Commercial System Releases January 4

Mail Tracking Vendor List

This document provides contact information for a number of third-party service providers who offer mail owner and mail service provider solutions.

DELIVERY - Winter Weather Update December 18

Financial Audit Reporting Tool v4

PCC Event Planning Template 5.0 - 12.15.25

INFORMATIONAL - USPS Ship Payment Transaction Type Update for Monthly Assessments

INFORMATIONAL - Reminder - Christmas and New Year's Holiday Recommendations on Live Animal Shipping

DELIVERY - UPDATE - WestPac Area - Washington District - Hamilton Post Office (98255) - Temporarily Closed

DELIVERY - Hamilton Post Office (98255) - Temporarily Closed

INFORMATIONAL - U.S. Postal Service Announces Bid Solicitation

Opportunity to Feature NPF on Your Podcast

Request to Participate - MTAC User Group and Work Group

Request to Lead - MTAC User Group and Work Group

PROCESSING AND DISTRIBUTION: Destinating Delays at South Suburban, IL - Processing and Distribution Center (P&DC)

INFORMATIONAL - Reminder - USPS Mail Flow 101 Webinar

INFORMATIONAL - Tracking Access Validation Webinar Schedule - Update Notification

DELIVERY - WestPac Area - Washington District - Stehekin Post Office (98852) - Temporarily Closed

Addressing Fact Sheet for USPS Marketing Mail Flats

This document is for business mailers who are sending flat-size USPS Marketing Mail (such as large envelopes, catalogs, and circulars). To use the USPS Marketing Mail prices, you must send at least 200 pieces or 50 pounds of mail at a time, prepared and sorted according to Postal Service guidelines.

PCC Announcing New PCCAC Board Members

INFORMATIONAL - USPS Ship (PPC) Services – INCIDENT 10260246

DELIVERY - WestPac Area - Washington District - Sumas Post Office (98295) - Office Temporarily Closed

ID API Release Notes Release V1.0

Informed Delivery API Technical Specifications V1.0_5.0

DELIVERY - WestPac - Washington District Snoqualmie Post Office - Temporarily Closed

INFORMATIONAL - Logistics and Infrastructure Organizations

INFORMATIONAL- Update - Plant-Verified Drop Shipment Updates

PROCESSING AND DISTRIBUTION - Volume Delays at Louisville KY PDC 12-10-2025

INFORMATIONAL- Plant-Verified Drop Shipment Updates

DELIVERY - Notification of Suspension of Mail Service - Effective December 12, 2025

INFORMATIONAL - USPS Mail Flow 101 Webinar Dec 16, 2025

INFORMATIONAL - Tracking Access Validation Notification

INFORMATIONAL - Final Update - USPS Ship INCIDENT # 10234251 PEW Data Feed Now Current

PAVE™ 2026 Advisory Cycle S Extension

This advisory is to inform you that there will be no PAVE Cycle S/MAC Batch Certification testing for the 2026 Price Change releases. USPS has decided to extend the current PAVE process until January 19, 2027, and will not be testing or accepting files for testing during the transition into 2026.

INFORMATIONAL - Retirement of Dane A. Coleman, Vice President of Processing Operations

PROCESSING AND DISTRIBUTION: Unload Delays at Kansas City, MO and Louisville, KY Processing Facilities

Mail.dat Technical Specifications R63.0.0.0

INFORMATIONAL - USPS Ship (INCIDENT # 10234251) Data delay

PTR2 Event Scripting Changes (Excel Document)

PTR2 Event Scripting Changes

NCOALink® Statistics

This spreadsheet includes NCOALink statistics from 2007-2025 by licensee type.