User Guides
06/05/2023
IMPB Service Type Code List (Excel) Effective July 9, 2023

Excel version of the Intelligent Mail Package Barcode (IMpb) Service Type Codes effective July 9, 2023. Please follow this link for the PDF version.

A 3-digit Service Type Code (STC) is required in every IMpb. The 3-digit service type code uniquely identifies the mail class, product, and extra service(s) combination in a single, integrated barcode to increase intelligence, visibility, and efficiency in scanning, sorting, transportation, handling and reporting. The service type code is specific to one class of mail.  The listing includes a description that defines each service type code.  IMpb barcodes also require descriptive banner text, which is the human readable text above the barcode that describes service features such as when signature or Adult Signature is required.  Many of the service banners include a trademark or registered symbol which are recommended but not required.  Both the service type code and up to five (5) associated extra services codes must be included in the appropriate fields when a mailer submits Shipping Services Files.  The Postal Service requires this electronic information to confirm features (such as Hazmat, Open and Distribute, Returns, etc.) and fees are being noted for each extra service. 

Column Change Status –Indicates Ret(Retired)/Chg(Changed)/New.  Column Chg Date –Indicates effective date of Retired/Changed/New status

User Guides
06/05/2023
IMPB Service Type Code List (PDF) Effective July 9, 2023

PDF version of the Intelligent Mail Package Barcode (IMpb) Service Type Codes effective July 9, 2023. Please follow this link for the Excel version. 

A 3-digit Service Type Code (STC) is required in every IMpb. The 3-digit service type code uniquely identifies the mail class, product, and extra service(s) combination in a single, integrated barcode to increase intelligence, visibility, and efficiency in scanning, sorting, transportation, handling and reporting. The service type code is specific to one class of mail.  The listing includes a description that defines each service type code.  IMpb barcodes also require descriptive banner text, which is the human readable text above the barcode that describes service features such as when signature or Adult Signature is required.  Many of the service banners include a trademark or registered symbol which are recommended but not required.  Both the service type code and up to five (5) associated extra services codes must be included in the appropriate fields when a mailer submits Shipping Services Files.  The Postal Service requires this electronic information to confirm features (such as Hazmat, Open and Distribute, Returns, etc.) and fees are being noted for each extra service. 

Column Change Status –Indicates Ret(Retired)/Chg(Changed)/New.  Column Chg Date –Indicates effective date of Retired/Changed/New status

User Guides
04/17/2023
NCOALink® End User Performance Requirements

The purpose of these performance requirements is to establish standard criteria of performance with which USPS® requires NCOALink® End User Licensees to comply.

User Guides
04/14/2023
NCOALink® Limited Service Provider Licensee Performance Requirements

The purpose of these performance requirements is to establish standard criteria of performance with which USPS® requires NCOALink® Limited Service Providers (“Licensees”) to comply.

User Guides
04/14/2023
MPE Data User Licensee Performance Requirements

This document defines the licensee performance requirements for NCOALink® Data User Mail Processing Equipment.

User Guides
04/14/2023
MPE DEV SPR: MPE Software Developer Software and Hardware Performance Requirements

This document defines software and hardware performance requirements for NCOALink® Mail Processing Equipment.

User Guides
04/14/2023
NCOALink® Full Service Provider Performance Requirements

This document provides information on NCOALink® Full-Service provider licensee performance requirements.

User Guides
04/14/2023
NCOALink® Software Developer Performance Requirements for Service Provider

This document provides information about the NCOALink® software developer performance requirements.

User Guides
04/14/2023
NCOALink® Software Developer Performance Requirements for End User

The purpose of these performance requirements is to establish standard criteria of performance that USPS requires NCOALink Software Developers (“Developers”) to comply with.