Column E:
O - Owner Address
B - Billing Address
C - Contract Buyer Address

Column K:

C - Canadian ZIP Code. The data was not found.
L - Length error. The address is valid but the address field is not long enough to standardize.
M - Multiple Addresses. The national database found two or more possible ranges for your address.
N - No Data Available for City. Address data for this city is not in the database. If you are using a regional data file, check to see that the address is located in that region.
R - Address Out of Range. The address is not within the delivery range.
S - The address failed DPV checking. There is no mail receptacle at this location.
T - Multiple Components. More than one component of your address is in error. Address components are the pre-direction, post-direction, and suffix.
U - Unknown Street. No street could be found within the city that matches the street name given in the address field.
W - EWS. This address has been identified in the Early Warning System (EWS) data file, and should be included in the next national database update.
X - Non-delivery Address. The location given in the address field physically exists in the city but the post office has indicated that there are no houses there. This may occur when one side of the street has railroad tracks or a river along side it.
Z - The ZIP CodeTM is invalid or does not match the city name.