Address Standardization with CASS certification

Address Standardization with CASS certification adds ZIP+4 Codes, Carrier Routes and Delivery Point Barcodes (DPBC) to mailing lists and formats addresses to meet U.S. Postal Service (USPS) requirements.

Based on the USPS Coding Accuracy Support System (CASS), our Address Standardization service utilizes a strict set of address matching standards that validates primary and secondary numbers against USPS ZIP+4 range records. It treats street door numbers and PO Box or rural route box numbers as primary numbers, and high-rise and firm address verification considers apartments, suites and other unit numbers as secondary numbers.

Address corrections can include spelling changes, directional, suffix and unit designator adjustments and ZIP Code and city name corrections as required under rigid USPS CASS certification control.

To maximize results, as part of Address Standardization, each file is checked before processing to look for problems, and the input data is optimized for the best results.

Address Standardization with CASS certification is an essential list maintenance tool that increases the deliverability of mail and is necessary for many postal discounts. With Address Standardization, you also receive a CASS certification report, Delivery Point Validation (DPV) and Locatable Address Conversion System (LACSLink) updates.

Select Features and How to Purchase above to view the Address Standardization with CASS certification feature list and information about rates and turnaround times.

• CASS Report—certifies your list is ZIP+4 coded
• ZIP Code corrections
• Plus4 Codes
• Carrier Routes
• Delivery Point Barcodes (DPBC)
• State abbreviations
• Spelling corrections
• Directional, suffix and unit designator adjustments
• City name corrections
• Delivery Point Validation (DPV)
• Locatable Address Conversion System (LACSLink) updates
• Preprocessing Optimization:
  • Each file is checked before processing to look for problems
  • Input data is optimize for the best results
• Friendly return file
• Next business day turnaround

Address Standardization with CASS certification can be purchased using our online order form or fax order form. You will be able to select additional data processing services to be run at the same time.

Online Order Form  |  Fax Order Form

NOTE: Address Standardization is provided free with DSF2 and all Change of Address services.

Customers new to Address Standardization or Address Hygiene Services will want to review the many additional resources located in the support section of this website.