Residential Delivery Indicator

Overview

The Residential Delivery Indicator (RDI®) is a USPS® data verification service that determines whether an address is residential or business.
This classification allows mailers and shippers to apply the correct postage rates, carrier methods, and delivery rules before mailing or shipping — helping reduce costs and delivery errors.

EZ24x7 integrates RDI® technology into its address validation process, returning precise delivery type codes for every address in your file. Whether you are mailing marketing materials, parcels, or invoices, RDI® ensures your delivery strategy and postage rates are accurate every time.

How RDI® Works

RDI® enhances USPS® delivery efficiency by verifying the type of address destination during processing. Here’s how it works within EZ24x7:

1. Address Standardization and Validation
   Every record is first corrected and standardized through CASS™ and DPV®, ensuring the address exists and is deliverable.

2. RDI® Classification Lookup
   EZ24x7 queries the USPS RDI® dataset to identify the delivery type:

   • Residential: A home or private dwelling serviced by residential routes.

   • Business: A commercial location serviced by business delivery routes.

3. Integration with Other Address Services
   RDI® results are combined with DPV®, NCOALink®, and LACSLink® data to give a complete picture of address accuracy, deliverability, and classification.

4. Reporting and Automation
   The results are appended to your address file along with USPS-defined RDI® codes, allowing downstream systems (presort, shipping, CRM, or billing) to make data-driven decisions automatically.

What We Provide

EZ24x7 delivers a complete RDI® classification service embedded within its address verification workflow:

• USPS-Licensed RDI® Verification for all U.S. addresses.

• Integration with CASS™, DPV®, and NCOALink® to ensure data consistency.

• Automated Classification Output identifying Residential or Business status.

• Detailed Processing Reports summarizing total residential vs. business breakdown.

• API-Ready and Batch-Processing Options for bulk or automated list processing.

• Seamless Presort Integration to ensure correct USPS rate application during mail preparation.

Benefits of Use

• Accurate Postage Rates: Ensures the right rates are applied based on address type.

• Optimized Delivery: Selects the best carrier and route automatically.

• Reduced Return Costs: Avoids misrouted mail and incorrect delivery methods.

• Improved Targeting: Tailors marketing campaigns to residential or business audiences.

• Operational Efficiency: Streamlines classification for presort and shipping workflows.

• USPS Compliance: Uses officially licensed RDI® data for accuracy and consistency.

Use Cases

• Direct Mail Campaigns: Identify residential customers for consumer offers or business locations for B2B mail.

• Parcel and Freight Optimization: Ensure carrier rate tables and delivery rules are applied correctly.

• Compliance Auditing: Verify address classifications for USPS or third-party mail audits.

• CRM / Billing Databases: Maintain consistent address type metadata across systems.

Summary

RDI® is the final step in creating a complete, USPS-ready address record.
By integrating residential and business classification directly into the validation process, EZ24x7 helps mailers optimize costs, delivery performance, and data quality — all while maintaining full USPS® certification.

EZ24x7 — Classify Smarter. Deliver Better. Save More.