USPS Standardized Footnotes

Mail*LIST and Mail*STAR are required to express DPV results using USPS standard two character footnotes.

Footnotes Reporting CASS Zip+4 Certification

AA – Input address matched to the ZIP+4 file.
A1 – Input address not matched to the ZIP+4 file.

Footnotes Reporting DPV Validation Observations

BB – Matched to DPV (all components).
CC – Primary number matched to DPV, but secondary number not matched (present but invalid).
N1 – Primary number matched to DPV, but high-rise address missing secondary number.
M1 – Primary number missing.
M3 – Non-postal Primary number invalid.
P1 – Input Address RR or HC Box number Missing.
P3 – Input Address PO, RR, or HC Box number Invalid.
F1– Input Address Matched to a Military Address.
G1– Input Address Matched to a General Delivery Address.
U1– Input Address Matched to a Unique ZIP Code.

Footnotes Reporting CMRA Observation

A commercial mail-receiving agency (CMRA) is a private business that acts as the mail-receiving agent for specific clients by providing a delivery address and other services. If the address matches to a CMRA location one of the following footnotes will appear.

RR – Matched to CMRA.
R1 – Matched to CMRA but Secondary Number not Present.

USPS Standardized DPV Valid Codes

The three single character codes associated with DPV validation set only if the address has been ZIP+4 certified. These characters are here referenced as:

DPV ZIP+4 Valid - domain = {' ','Y','S','D','N'}

CMRA - domain = {' ','Y','N'}

False Positive - domain = {' ','Y','N'}