Computerized Delivery Sequence (CDS)

The CDS program provides updated delivery sequence information on customer-provided address lists.

Who is CDS for?

Eligibility for the CDS update service is determined through the Address Sequence Service process described in the Domestic Mail Manual (DMM) 507.

First Class Mail

First Class Mail

Periodicals

Periodicals

Standard Mail

Standard Mail

Description

Benefits

Customers qualifying for CDS will benefit from the use of the CDS file through:

  • Complete and accurate addresses
  • Reduced undeliverable-as-addressed mail
  • Increased deliverability
  • Access to walk sequence saturation discounts
  • Ability to identify addresses marked as vacant or seasonal

The CDS product is distributed to qualified customers on a bi-monthly or weekly basis.

To establish a CDS account, customers must complete the CDS Customer Application and Web Access Form. Mail or fax (650-357-6741) the completed forms to the CDS Department at the NCSC.

Featured Resources

Fact Sheets
11/27/2017
Computerized Delivery Sequence (CDS) Brochure

The Computerized Delivery Sequence (CDS) program provides updated delivery sequence information to qualified mailers.

Applications/ Forms
09/01/2014
Computerized Delivery Sequence (CDS) Application/Renewal Form

This document contains the application and renewal form for CDS product.

Fact Sheets
Computerized Delivery Sequence (CDS) Products on Electronic Product Fulfillment (EPF)

Beginning October 2014, all Address Quality and Address Management products will be provided via the Electronic Product Fulfillment (EPF) method.

User Guides
11/27/2017
Computerized Delivery Sequence (CDS) User Guide

This document contains a user guide for CDS.

FAQs
01/25/2019
Computerized Delivery Sequence (CDS) FAQs

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

CDS Conversion Software

Data Files
Computerized Delivery Sequence (CDS) Conversion Software (Windows)

This document contains the Windows conversion software for CDS product.

Data Files
Computerized Delivery Sequence (CDS) Conversion Software (Windows7)

This document contains Windows 7 Conversion software for CDS product.

User Guides
01/02/2018
Computerized Delivery Sequence (CDS) Conversion Software User Guide (Windows)

This document contains the Windows software conversion user guide for CDS.

Quick Service Guides
Computerized Delivery Sequence (CDS) Conversion Software Instructions (Windows)

This docoument provides instructions for Windows conversion software for the CDS product.

Data Files
Computerized Delivery Sequence (CDS) Conversion Software (Linux)

This document contains the Linux conversion software for CDS product.

Data Files
Computerized Delivery Sequence (CDS) Conversion Software (Unix-Sun32)

This document contains the Unix (Sun-32) conversion software for CDS product.

User Guides
01/02/2018
Computerized Delivery Sequence (CDS) Conversion Software User Guide (Linux-Unix-Sun32)

This document contains the Linux/ Unix conversion software user guide for CDS product.

CDS Samples

Data Files
Computerized Delivery Sequence (CDS) Sample ZIP Code™

This document contains sample ZIP Code™ file for CDS.

Fact Sheets
Computerized Delivery Sequence (CDS) Sample ZIP Code™ Password

The CDS Sample ZIP Code file requires a password.

Related Products

Electronic Address Sequencing (EAS)

EAS provides an electronic option for processing address files for sequencing and/or qualification for Computerized Delivery Sequence (CDS).

Contact

For more information about CDS, contact the National Customer Support Center at 1-800-238-3150 or email cds.ncsc@usps.gov.