USPS DPV

Delivery Point Validation

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A magnifying glass with mail coming out of it, hovering over a map.

DPV is a USPS validation process that confirms the existence of a specific address (down to the apartment or suite number) and whether it can be delivered to or not. DPV checks for one of the following scenarios: Correcting potential addressing issues can reduce the amount of undeliverable-as-addressed (UAA) pieces, which in turn will result in more efficient mail processing and delivery.

  •  The address has the correct primary and secondary data
  •  The address has the correct primary but not secondary data
  •  The address cannot be validated

Correcting potential addressing issues can reduce the amount of undeliverable-as-addressed (UAA) pieces, which in turn will result in more efficient mail processing and delivery.

CDYNE's PAV API returns the following result codes for DPV validation:

  • 10 - Input address is not found
  • 100 - Input address is DPV confirmed for all components
  • 101 - Input address is found, but not DPV confirmed
  • 102 - Input address primary number is DPV confirmed - Secondary number is present but not DPV confirmed
  • 103 - Input address primary number is DPV confirmed - Secondary number is missing

In addition to the result codes, CDYNE's Postal Address Verification API will return USPS mailing industry information that can be useful for interacting with address verification at point of entry. A detailed chart of return codes, footnotes, and suggested interactions may be found in our Postal Address Verification DPV Code Suggestions blog post.