Service Type Identifier (STID) Table Effective July 27, 2020
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. The STID Table allows you to determine which STID to use based on the mail class, address correction option, use of IMb Tracing™ and whether the mail contains a Full Service or Basic IMb.
**Table updated to specify that the previously identified Election Mail/Ballot Mail Service Type IDs
are to be used only on Official Ballots mailed to or from authorized election officials
**Table redesigned and new Political Mail Service Type IDs added for mailings on or after July 27, 2020
**Recognizable references for Green & Secure Service Type IDs were added
**Ballot Mail STIDs effective 8/20/2018 were added
**Informed Visibility – Mail Tracking & Reporting name and link updated