Address Standardization (CASS) Services

Instantly clean your mailing list addresses to ensure deliverability.

Follow the United States Postal Service (USPS) Coding Accuracy Support System (CASS) standards to correct and validate mailing addresses, add missing address information to ensure the address is complete, and perform Delivery Point Validation (DPV) coding.

Connect With Your Customers Using Coding Accuracy Support System (CASS) Address Standardization

Speed-to-market and information accuracy are critical to your marketing campaign’s success. The UpdateYourList.com DIY Portal allows you to instantly clean and validate the mailing addresses for your customer and prospect files in real-time to get the most out of your contact records. Our Address Standardization services utilize the USPS Coding Accuracy Support System (CASS) requirements to correct and standardize addresses, add missing information, and process Delivery Point Validation (DPV).

Benefits of Address Standardization (CASS)

  • Save time & money with validated addresses for your mailing campaigns

  • Ensure your customer list is accurate and up-to-date

  • Improve campaign success by reaching more customers and prospects

  • Save money and reduce the number of undeliverable marketing pieces

  • Canadian Address Standardization (SERP) is also available

Features of Address Standardization (CASS)

  • Delivery Point Validation (DPV) Address validation to confirm that addresses are deliverable

  • ZIP + 4 can provide faster mail delivery and postage discounts

  • Identify addresses that have been vacant for more than 90 days

  • Identify bad addresses before mailing

  • Identify addresses that are missing apartment and suite information

  • Reduce fraud by identifying invalid or fake addresses

  • Clean and consistent data with proper upper and lower casing and correct USPS abbreviations

Processing Options For CASS Address Standardization

  • Self Service Do-It-Yourself Portal 24/7 Checkout: Yes

  • File Transfer Protocol (FTP) Automation: Yes

  • Developer API: Yes (a.k.a. Address Cleanse)

  • Submit File To Your Account Rep For Processing: Yes

  • Minimum Record Count: No Minimum

CASS Address Standardization Pricing

  • $1.30 for every 1,000 records ($0.0013 per record)

How Address Standardization (CASS) Processing Works In Our DIY Portal

  1. Create and activate your free DIY Portal account

  2. Upload the (.xls .xlsx .csv .txt .dbf .mdb .accdb) file you want to process to our secure processing servers

  3. Select Address Standardization (CASS) service

  4. Submit your order to receive real-time results (same day turn-around)

DIY Portal Coding Accuracy Support System (CASS) Address Standardization Sample Reports

Output File

Address Standardization (CASS) Sample File


Output File Layout

Address Standardization (CASS) Output Layout

View | Download

Coding Accuracy Support System (CASS) Report

Coding Accuracy Support System (CASS) Report

View | Download

Address Quality Report

Address Standardization (CASS) Address Quality Report

View | Download

Data Quality Summary Report

Address Standardization (CASS) Quality Summary Report

View | Download

Address Standardization (CASS) Processing Frequently Asked Questions

What is Coding Accuracy Support System (CASS) processing?

Coding Accuracy Support System (CASS) is a certification system from the United States Postal Service (USPS) for address validation. Our CASS-certified address validation service standardizes your mailing lists, updates outdated addresses, and verifies that your addresses are valid and complete. The DIY Portal instantly standardizes, corrects, updates, and verfies the addresses in your file and returns your file in minutes.

Why should I use Coding Accuracy Support System (CASS) address standardization?

Maximize address quality, minimize mailing cost. Delivery information is only as good as the quality of the address data. Our goal is to help customers send their mail to the correct address every time. CASS address standardization provides added product value and service offerings that enable our customers to better manage the quality of their mailing lists while maximizing the ability to deliver mail as addressed.

Can I save money with CASS standardized data?

Yes! Ensuring every mail piece you send is deliverable, means you will not waste money for returned pieces or mail sent to a vacant address. Also, by using CASS address standardization you may qualify for postage discounts for every single mail piece when pre-sorting the mail for the USPS.

What is the DIY Portal turn-around time for CASS Address Standardization processing?

When opting for real-time processing, the DIY Portal can process thousands of records per minute, and files are returned within minutes or hours based on the total record count.

How much does Address Standardization (CASS) cost?

It only costs $1.30 for every 1,000 input records, or $0.0013 per record. For less than a penny a record the cost for processing is easily recovered when you're not sending undeliverable mail.

What data elements are returned in my file when I process CASS address standardization?

Download our CASS_Ouput_File.xlsx sample file to see sample data that is returned.

Download our CASS_Ouput_File_Layout.pdf that explains the layout and data dictionary for all of the fields and elements returned.

Is CASS address standardization available through your API?

Yes! In our API adress standardization is known as Address Cleanse.

Can I process Canadian records through address standardization?

Yes, however it is a different service. Additional details can be found on our Canadian Address Standardization (SERP) page.

This Address Standardization (CASS) landing page content was last updated on: 4/26/2021