Postal Certifications & Enhancements

Address IQ is CASS Certified™ (Coding Accuracy Support System) by the USPS. CASS is the standard that measures how accurately software matches and corrects addresses, and it's the basis for the USPS Form 3553 that mailers submit to claim automation discounts. Address validation runs as a certified, integral part of every job.

Delivery Point Validation (DPV) confirms whether an address is an actual, deliverable delivery point - not just a valid ZIP+4 range. It catches addresses that look correct but don't really exist, and it flags conditions such as vacant addresses and locations that receive no mail statistics, so you can suppress questionable records before you mail.

LACSLink automatically converts older-style rural-route and highway-contract addresses, and addresses renumbered by local governments, to their current city-style equivalents. This keeps addresses deliverable as communities modernize their addressing - often for enhanced 911 emergency service.

SuiteLink adds missing secondary (suite) information to business addresses in high-rise buildings by matching a firm name and known high-rise address to USPS data. More complete addresses mean more pieces sorted to delivery sequence and delivered accurately. SuiteLink processing is a required part of CASS.

Through the integrated Mover IQ component, Address IQ performs NCOALink processing to update addresses for people and businesses that have moved, using the USPS change-of-address database. Move update keeps your list current, reduces undeliverable-as-addressed mail, and satisfies USPS move-update requirements for automation pricing.

For users who license 18-month NCOALink data, ANKLink® (Address Not Known) extends that coverage with additional move information for months 19 through 48. When a match is found in that older window, ANKLink indicates that a move occurred and when — it does not return the new address.

That signal lets you suppress contacts who have moved, or pursue the updated address through an NCOALink full-service provider. Full-service providers already receive the full 48 months of change-of-address data (including new addresses), so ANKLink applies to the 18-month NCOALink data set.

DSF2 (Second-Generation Delivery Sequence File) validates addresses against the USPS delivery file and adds two kinds of value:

• Delivery-sequence information for walk-sequence presorting, which qualifies mailings for additional postage discounts.
• Address attributes - such as business vs. residential, seasonal, and drop delivery - that let you build more targeted mailings.

Residential Delivery Indicator (RDI) identifies whether a deliverable address is a residence or a business. This is especially valuable to parcel shippers: because some carriers add surcharges for residential delivery, knowing an address is residential can inform the most cost-effective shipping choice.

• eLOT (Enhanced Line of Travel) provides the approximate order in which mail is delivered along a carrier route, supporting the sortation needed for enhanced carrier-route discounts.
• EWS (Early Warning System) recognizes brand-new addresses that are valid but not yet in the current reference data, preventing them from being incorrectly rejected.

Taken together, these programs let Address IQ assign the full range of postal-automation codes - ZIP+4, delivery point, carrier route, and line-of-travel - that qualify mail for the lowest available postage rates. Even when you aren't standardizing for appearance, these codes support barcoding and presorting to earn automation discounts.