RDI and DPV Codes
When you validate an address, the address is assigned Residential Delivery Indicator (RDI) and Delivery Point Validation (DPV) codes which provide additional information about the address.
RDI Codes
For U.S. addresses only, Residential Delivery Indicator (RDI™) processing can help you determine the best cost for shipping your packages. RDI™ processing identifies whether an address is a business or a residential address. This difference is important because some delivery services charge a higher price for delivery to a residential address than they do to a business address.
The RDI field contains one of the following codes for validated addresses:
- B
- The address is a business address.
- R
- The address is a residential address.
- M
- The address is both a residential and a business address.
- null
- Not checked because the address did not code at a ZIP + 4® level, or RDI™ was not performed.
DPV Codes
Delivery Point Validation (DPV®) is a United States Postal Service® (USPS®) technology that validates the accuracy of address information down to the individual mailing address. By using DPV® to validate addresses, you can reduce undeliverable-as-addressed (UAA) mail, thereby reducing postage costs and other business costs associated with inaccurate address information.
The DPV field contains one of the following codes for validated addresses.
- Y
- DPV confirmed. Mail can be delivered to the address.
- N
- Mail cannot be delivered to the address.
- S
- The building number was validated but the unit number
could not be confirmed. A building number is the primary
address number for a building. A unit number is a number
of a distinct mailing address within a building such as
an apartment, suite, floor, and so on. For example, in
this address 424 is the building number and 12 is the
unit
number:
424 Washington Blvd. Apt. 12
Oak Park IL 60302
USA - D
- The building number was validated but the unit number
was missing from input. A building number is the primary
address number for a building. A unit number is a number
of a distinct mailing address within a building such as
an apartment, suite, floor, and so on. For example, in
this address 424 is the building number and 12 is the
unit
number:
424 Washington Blvd. Apt. 12
Oak Park IL 60302
USA - M
- The address matches multiple valid delivery points.
- U
- The address could not be confirmed because the address did not code at the ZIP + 4® level.
- V
- The address caused a false-positive violation.