Fact Sheets
Service Type Identifier (STID) Table Effective January 21, 2024

The STID (Service Type Identifier) is a three-digit numeric code used within the Intelligent Mail® barcode (IMb™) on a mailpiece that identifies the address correction or other electronic services desired.

Fact Sheets
Clarification to the Move Update Standard

This document contains information on the Move Update standards.

Fact Sheets
Intelligent Mail® Barcode (IMb) Resources

This fact sheet provides a listing of Intelligent Mail Barcode resources.

Fact Sheets
Intelligent Mail® Barcode Resources

This document provides additional information and resources on IMb.