US Correction Codes

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Brief Description of U.S. Correction Codes

Code

Definition
AA / A2 / A3 / A5 / A6 / A9 /AU / BB / CC

/ DD / D1 / D2 / EE / E1 / E2 /E3 / E4 / E5

/ FF / F1 / G1 / II / I1/ HH / H1/ RR / S1

/ S1 / S2 / S3 / UA / UB / UC / UD / U1 / X1

/ Z0

 Address Corrected / Valid
KK / Z1 / Z2 Address Uncorrectable
A1 No Zip + 4 match
A7 Rejected due to EWS
A8 Address not specified
AC Multiple County’s defined
G4 Street Number out of Range of alias street match.
JJ Failed to Match last line of address
K1 Missing / Incorrect street Directional(s)
K2 Missing / Incorrect street suffix
MA / MC / M1 / M3 Missing Street Number
MB Street Name Not Found
MD Firm Name not matched
NA / NB / NC / N1 / R1 Missing / Incorrect Secondary Number
P1 / P2 / P3 / Q1 / Q2 Missing / Incorrect RR/HC/PO Box Number


Extended Description of Error Codes

Code Definition
AA Record Matched to the ZIP+4 File
This footnote is set any time that a record is matched. This is the equivalent of
having a return code of 31 or 32.
A1 Record Not Matched to the ZIP+4 File
This footnote is set every time that a record does not match to the ZIP4 file,
but makes it through basic parse and last line validation. This is the equivalent
of having a return of 21 or 22.
A2 Alias Street Name Matched
This footnote is set every time a match is made to an alias street name.
A3 Alternate Record Matched on the ZIP+4 File
This footnote is set every time a match is made to an alternate ZIP4 record.
An alternate record contains a different presentation a street name for a ‘base’
ZIP4 record. The addon code is the same for the alternate and the base record.
A4  

Match to Small Town Default
A small-town default match does not actually match to an existing ZIP4
record, but gives back a return code of ’31’ and an addon code of ‘9999’. This
condition exists when the input ZIP code is flagged as a ‘Small Town’ and
only accepts ‘GENERAL DELIVERY’ type addresses, but a street-style or PO
BOX address was presented on input. Since there are no actual street or PO
BOX deliveries, all addresses in this ZIP code will get a ‘default’ addon of
‘9999’.
A5 Match to Unique ZIP Default
A Unique ZIP code is a ZIP code set up by an institution (like a university) or
a business that handles its own mail delivery. The USPS collects the mail at
the post office, and the institution picks it up and distributes it internally.
Even though it is possible to have ZIP4 records for Unique ZIP code, most
institutions have addressing schemes that are not fully populated in the
database. Therefore, when an input Unique ZIP code is found, and the input
address is not found, a return code of ’31’ is given back, along with a ‘default’
addon of ‘0001’.
A6 Match to a Highrise Default Alternate record
This footnote is set when a Highrise Default Alternate style address match is
made. This condition exists when an input address contains the secondary
number (an apartment, suite, etc.) along with a building name. No primary
number or street name is given. For example:
456 FEDERAL BUILDING
The coder will take this address and turn it back into a street-style
presentation.
123 MAIN ST STE 456
A7 Address rejected due to EWS
See the chapter titled ‘EWS System’ for information on how EWS works.
A8 Possible dual address detected
This footnote is set when a ‘dual address’ may be present, such as:
RR 3 BOX 123 456 MAIN ST
Since there are 2 possible addresses available, the Coder will not choose
which one to parse and return. This address construct results in a 21 return
code.
A9 DPV used to break ZIP4 multiple response
In some cases when a multiple-response is found during ZIP4 address
processing, the DPV engine can be used to break the tie. During this process,
all the candidate records are queried against the DPV database. If one and
only one record is found to have a positive DPV confirmation, then this
record will be chosen for the match, and a single response code is given back
from the address lookup process. This footnote is turned on under this
condition.
AC ZIP+4 Level county name is different than the ZIP Code level
Note: This footnote will only be returned if the ZIP4_COUNTY parameter is
specified in either the configuration file or the AC_OPEN_T structure. See
the ‘Configuration File’ chapter for details on when this footnote is set.
AU Unique ZIP default information returned.
BB DPV match, all components. A DPV match was made using all the components
of the address (primary and secondary number).
CC DPV match primary number, not secondary number
A DPV match was made with the primary number only. A secondary number
was present on the input address, but was not used for DPV.
DD Corrected City Name and/or State Information
The city or the state was changed.
D1 Input city name was non-mailing, corrected (AC)
The input city name was a non-mailing name for the matched ZIP code. The
output address contains the corrected city name.
D2 ZIP+4 State code different than ZIP Code default
This footnote indicates that the state code on a matched ZIP4 record differs
from the state code assigned to the ZIP code of the output address. This can
happen when a physical address exists in one state, but the mail is delivered
to that address from another state. In some geographical situations, it is better
for a post office in one state to deliver mail to addresses that are in a
neighboring state. In these situations, the output address of the Coder will still
show the state code of the delivering post office. The state code of the
physical address will be shown in the matching ZIP4 record (the matched_rec
field of the AC_OUTPUT_ADDR_T structure.
EE Corrected Primary Address (E1 or E2 is on)
The primary address line was corrected.
E1 Corrected primary address component (AC)
A directional or suffix address component was added, deleted, or changed.
E2 Corrected primary street name (AC)
Set if the street name spelling was changed.
E3 Primary address line standardized (AC)
Set if any portion of the primary address line was standardized.
E4 A questionable address standardization was made. This can happen when an
input address looks like 123 MAIN ST BOX 123 (a possible dual address),
and it gets standardized to 123 MAIN ST # 123.
E5 The first letter of the street name has been added or changed.
FF Corrected Secondary Address Data
Set when the secondary number or unit designator was changed. Examples of
allowable secondary number changes are reversing alpha-numerics, and
adding or deleting dashes:
A5 => 5A
A5 => A-5
F1 Military match
A match was made to a ZIP Code that has been determined to be a Military
ZIP Code.
G1 General Delivery match
A match was made to a General Delivery ZIP+4 record.
G4 Out of range alias match
A match was made to an alias street name, but the primary number did not
match the allowable range for the alias street name. This is a ‘no-match’
condition and a return code of ’21’ is given back.
II Firm and address swapped (AC)
The firm line and the address line were swapped to make the match.
I1 Urb moved from address line (AC)
A PR Urbanization was found in the address line and moved to the
Urbanization line.
HH ZIP Code Changed
The input ZIP code was changed.
H1 ZIP code added (AC)
No ZIP code was in the input address, and one was added.
JJ Failure to Match Last Line of Address
The last line was not able to be matched. This is equivalent to the return code
’11’.
KK Multiple Match in Primary Address Field
K1 Multiple Match due to Missing/Incorrect Directional(s)
K2 Multiple Match due to Missing/Incorrect Suffix
MA ZIP4 -Missing Street Number
A primary number is missing from the input address.
MB ZIP4 – Street Name Not Found
The input street name could not be found in the ZIP+4 data file.
MC ZIP4 – No Such Primary Number
This is set when the input street name was found in the ZIP+4 file, but the
input primary number could not be found with the given street name.
MD ZIP4 – Firm Name Not Matched
M1 DPV -Missing Street Number
A primary number is missing from the input address.
M3 DPV – No Such Primary Number
This is set when DPV cannot validate the primary number, even though the
address matched to a valid ZIP+4 range.
NA ZIP4 -Missing Secondary Address Number
A match was made to a ZIP+4 Highrise record, but no secondary number was
present on the input address.
NB ZIP4 – Secondary Number not found
A match was made to a ZIP+4 record, but the input secondary number could
not be found.
NC Multiple Match in Secondary Address Field
Set when a ‘multiple response’ condition occurs with highrise specific records,
and one cannot be picked. The Coder returns the highrise default or street
level record. For example:
Input address is ‘123 MAIN ST # 4’ and both APT 4 and STE 4 are present.
NOTE: This footnote used to be called L.
N1 Missing Secondary Address Number for an Address located within a highrise
For DPV, a match was made to a Highrise record, but the secondary number
was not present on the input address.
P1 Missing RR/HC Box Number for rural-route style addresses,

the BOX number was missing on input.
P2 RR/HC Box Number not found
Currently not being set.
P3 Invalid RR/ HC/ PO BOX number.
Q1 Missing PO Box Number
Q2 PO Box Number not found
RR DPV – CMRA match
The CMRA flag was set in DPV.
R1 DPV – CMRA, no secondary number
S1 Seasonal record information present
This footnote indicates that seasonal information is present. The seasonal
information is in the ‘seasonal’ field of the AC_MATCH_INFO_T structure.
Certain addresses receive mail only during part of the year. The ‘seasonal’
field contains a 12-character, NULL-terminated string indicating which
months have mail delivery for the given output address. The field is a string
of ‘Y’ and ‘N’ flags. Each of the 12 positions correspond to the 12 months of
the year. A ‘Y’ value in a position indicates that the mail is delivered for that
month. For example, the string ‘NNNNYYYYNNNN’ shows that mail is only
delivered in the months ofMay, June, July, and August.
S2 SUITE Link information added to the address.
S3 Address matched to STOP Link.
UA No PR Urbanization was given with the input address, but an Urbanization
was found in the matched ZIP4 record. This Urbanization was returned on
output.
UB The input PR Urbanization was verified to be valid according to the ZIP4
record that was matched.
UC The input PR Urbanization was not verified with the matched ZIP4 record,
because the matched record contained a blank Urbanization field. The input
Urbanization was retained in the output address.
UD The input PR Urbanization was not verified with the matched ZIP4 record,
because the matched record contained a different Urbanization name. The
Urbanization from the matched ZIP4 record was returned with the output
address.
U1 Unique ZIP Code Match
A match was made to a ZIP Code that has been determined to be a Unique
ZIP Code. See footnote A5 for more information on Unique ZIP Codes.
X1 IntelliZIP match
This footnote indicates that a match was made using IntelliZIP logic. If a
match is not made through normal address matching procedures, and if the
input address contains a 9-digit ZIP code, then a reverse 9-digit lookup is
performed. If the ZIP+4 record corresponding to the input 9-digit ZIP code
closely matches the input address, then a match will be returned and this
footnote will be set.
Z0 ZIPMOVE match
A match was made to a ZIP Move address. ZIP Move represents a collection
of addresses that have been affected by a ZIP code realignment (i.e. the
boundaries for a ZIP code were redrawn).When this happens, some street
segments will move from one ZIP code to another. This can cause problems
when an input address contains the ‘old’ ZIP code, and the address matching
software tries to change the address to keep it in the old ZIP code instead of
moving to a new ZIP code. To help out, the USPS keeps a separate file of
these situations that are used by address matching software. This footnote is
set when the input address contains the old ZIP code, and the Coder changed
it to the new ZIP code. An exact match must be made to the address in order
for this to happen.
Z1 ZIPMOVE no match due to component change
The best match available was to a ZIP Move address, but the input address
was changed to get there. This is not allowed, so a no-match condition is
made with a return code of ’21’.
Z2 ZIPMOVE no match due to invalid new ZIP+4
This represents a data inconsistency with the USPS ZIP4 and ZIP Move files.
The address was no-matched with a return code of ’21’

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