USPS FAQ - Modernization of NCOA Processing with APIs

USPS PTR2 API Known Issues

Modernization of Address Processing with APIs - Q & A

Marriage Mail Incentive FAQs

Marriage Mail is a form of direct mail in which marketing service companies combine or “marry” advertisements (e.g., coupons or sales notices) from multiple companies into one mail piece to reduce the cost of the mailing for individual advertisers. This type of direct mailing product allows businesses to reach targeted customer segments.

2026 Promotions FAQ

Mail Growth Incentives FAQs

Enterprise Payment System (EPS) FAQs

The Enterprise Payment System or EPS allows customers to pay for products and services through an Enterprise Payment Account (EPA) funded as an Automated Clearing House (ACH) Debit or Trust Account. The EPS payment account management provides enhanced security features, centralized balance and account management, and a self-service customer experience.

How to Cancel an Existing PFSC Request

Creating PFSC Requests

PFSC Event-Shipment Status Types

Troubleshooting PFSC Delivery Issues

Troubleshooting PFSC Annual Enrollment Fee Issues

Paying Your PFSC Annual Enrollment Fee

Troubleshooting Address Validation Errors for PFSC

How to Onboard with PFSC

Producing PFSC Reports

Master and Partner MID Use in PFSC

Introduction to Premium Forwarding Service Commercial (PFSC)

Periodicals Application Process FAQ

Periodicals Application Process FAQ

Plus One FAQs

USPS Ship Frequently Asked Questions

USPS Ship Frequently Asked Questions

PTR2 FAQs

Modernization of Address & NCOA Processing with APIs - Q & A

2025 Integrated Technology Enrollment Guide

Promotions Alert: 6/6/2025

Secure Destruction Frequently Asked Questions (FAQs)

This document outlines frequently asked questions and answers regarding secure destruction.

Intelligent Mail Matrix Barcode (IMmb) FAQ Page

The IMmb is a two-dimensional, GS1 DataMatrix barcode used for routing and tracking of packages within the USPS processing network.  Presently the IMmb is used in combination with the Intelligent Mail Package Barcode (IMpb) to improve processing efficiency. 

Newspaper Mail Preparation & Entry

Guidance for Newspaper Publishers 

Periodicals: Customer Service Issues

Guidance for Resolving Periodicals Delivery Issues

Periodicals Account Maintenance - Frequently Asked Questions (FAQ)

USPS Nonprofit Authorizations - Frequently Asked Questions

Provides answers to questions for customers applying for a USPS Nonprofit Authorization.

Periodicals: New Launch Procedure - Frequently Asked Questions

For publishers applying for Periodicals mailing privileges using the New Launch procedure.  

Periodicals: Application Process - Frequently Asked Questions

Provides answers to frequently asked questions from publishers applying for Periodicals mailing privileges.

TED-C (Trailing Edge Die-Cut) Letters - Frequently Asked Questions

This document answers some frequently asked questions about mailing TED-C letters.

Address Element Correction (AEC) FAQ

FAQ page for AEC product, including what it is, how it works, turnaround times, and costs.

July 2024 Market Dominant Price Change Filing Webinar Q&A updated May 29, 2024

Computerized Delivery Sequence (CDS) FAQs

This document provides frequently asked questions (FAQs) and answers for the CDS product.

Electronic Address Sequencing (EAS) FAQs

This document provides frequently asked questions (FAQs) and answers for EAS.

Address Element Correction II (AEC II) FAQ

FAQ page for AEC II product, including what it is, how it works, and costs.

January 2024 Release - FAQ

Retargeting Promo Job Aid- Asking Questions

To go back to Portal Guide

TSI Promo Job Aid- Asking Questions

To go back to Portal Guide

July 2023 - Release - FAQ

FAQs for the IV-MTR API

This document provides answers to FAQs for the IV-MTR API.

January 2023 - Release FAQ

Ancillary Services for Parcel Select and Parcel Select Lightweight FAQs

Frequently Asked Questions for Ancillary Services for Parcel Select and Parcel Select Lightweight

Intelligent Mail® Barcode FAQ

This document includes frequently asked questions (FAQ) and answers for IMb.

April 2022 - Release FAQ

Important information about upcoming April 2022 Release changes.