Quick Service Guides
05/11/2021
Service Type Identifier (STID) Quick Service Guide

This document provides quick information about the STID (Service Type Identifier) - a three-digit numeric code used within the Intelligent Mail® barcode (IMb™).

Quick Service Guides
11/25/2020
What is New?
Quick Service Guides
11/25/2020
Mailpiece Qualification Tips
Quick Service Guides
09/23/2020
Service Performance Measurement Fact Sheet

This document provides information for Service Performance Measurement.

Quick Service Guides
08/22/2018
Mailers' Technical Advisory Committee (MTAC) Work Group Guidelines

This document provides guidelines for MTAC Work Group formation and operation.