Designed to cleanse mailing lists, Polk’s List Hygiene Services will help you standardize address information and eliminate undeliverable addresses.

Polk’s List Hygiene services include:

NCOALink™ (National Change of Address)
Based on information submitted to the United States Postal Service®, your database is standardized and appended with the most recent forwarding addresses. This enables you to:

• Minimize undeliverables
• Update your file with the most current ZIP Codes+4
• Eliminate costs of requesting address corrections directly from the USPS
• Drop records identified as moved with no forwarding address

CASS (Coding Accuracy Support System)
This address standardization service corrects address imperfections including:

• Street names
• State abbreviations
• 5-digit ZIP Codes
• Carrier Route Codes
• USPS Delivery Point Bar Code (DPBC)