USPS Barcode FAQ & Tutorial
The information provided here describes how to create
and implement the various types of automation used by the United States
Postal Service (USPS). Information about barcode generation, printing
and verification is provided for Postnet, Planet, GS1-128, EAN-128,
FIM, OCR-A and USPS Intelligent Mail® Barcode
(aka: OneCode Solution 4-State Customer Barcode)
The POSTNET (Postal Numeric Encoding Technique) barcode type was
developed by the U. S. Post Office to encode zip code information. POSTNET
barcodes on U.S. mail improve the speed, accuracy and delivery of mail.
Some U.S. Post Offices also offer a discount for sending bulk mail that
contains the POSTNET barcode. However, the USPS plans to require the
Intelligent
Mail barcode to qualify for automation discounts beginning January
of 2009. For this reason, IDAutomation has implemented unique encoding
in IDAutomation
Postnet Fonts, which allow printing of Postnet, Planet and Intelligent
Mail barcodes with the same font, to meet the requirements today with
the needs of tomorrow.
All IDAutomation Barcode Products support the printing of Postnet
such as the Barcode
Components,
Label Software and the
Postnet Font Advantage
Package, which includes over 30 tools for easy integration, including
support for Microsoft
Access,
Crystal Reports,
Oracle Reports and
FileMaker.
Determining the Data to Encode:
- To create a proper Postnet Barcode with
IDAutomation barcode products, a single string of numbers must be
entered that is made up of the following:
|
Field
|
Digits
|
Example
|
| Zip Code |
5 |
12345 |
| Zip +4 |
4 |
1234 |
| DPBC number |
2 |
12 |
Complete string from example data above:
12345123412
After the string is obtained, it is encoded with IDAutomation's
products. |
- POSTNET barcodes can be printed as a 5-digit POSTNET barcode, ZIP+4
POSTNET barcode or a Delivery Point Barcode, which is also referred
to as DPBC. If unsure as to which method to use, contact the local post
office for assistance.
- The 5-digit POSTNET barcode consists of the start/stop character,
5 digit ZIP code data, check digit and the start/stop character,
for a total of 32 bars.
- The ZIP+4 POSTNET barcode consists of the start/stop character,
9-digit ZIP code data, check digit and the start/stop character,
for a total of 52 bars.
- The DPBC POSTNET barcode consists of the start/stop character,
9-digit ZIP code data, two DPBC numbers, check digit and the start/stop
character, for a total of 62 bars. The two DPBC numbers are usually
the last two digits of the street address, PO Box or route number.
If the plan is to use DPBC, examine chapter 5 of the
USPS Domestic Mail Manual for
information on handling abnormal addresses.
Generating a barcode:
Size:
- The size of the POSTNET barcode must be between 22 and 24 bars per
inch. The size may be adjusted by setting the narrow bar width. Additional
font widths are provided with
IDAutomation Postnet
Barcode Fonts for this purpose.
Location of the symbol:
- The POSTNET barcodes must be printed on specific areas of mail, usually
directly below the address. For more information about the formatting
and placement of POSTNET barcodes or FIM symbol placement, refer to
Chapter 5 of the USPS document Domestic
Mail Manual and USPS Publication 25 or contact the local post office
Automation Specialist for assistance.
USPS Intelligent Mail (Aka: OneCode, the 4-State Customer Barcode,
4CB and USPS4CB) includes a height-modulated barcode designed for use in high
speed, automated, mail sorting machines that allow both PLANET and POSTNET
barcode information to be combined into a single barcode to track mailings,
request address-quality services (including updated address-change information)
and return-mail service. The unique encoding used in
IDAutomation Postnet
Barcode Fonts allows printing of Postnet, Planet and Intelligent
Mail barcodes with the same font.
Note: The OneCode Solution is also known
as the
Intelligent Mail Customer Barcode. The encoding
of each is the same. In IDAutomation products,
the selection of OneCode will create the same barcode as the Intelligent
Mail Customer Barcode.
The USPS Planet barcode is designed to track both inbound and outbound
letter mail. The Planet barcodes compliment the existing Postnet barcodes.
The Planet barcodes are required by the U. S. Post Office to use their
Confirm service.
USPS Intelligent
Mail OneCode Confirm should be considered for new implementations
of this barcode type, because it combines Postnet and Planet data into
a single barcode symbol.
CONFIRM provides confirmation that customers received the mail, allowing
mailers to synchronize telemarketing programs with direct mail campaigns
or augment other advertising media with their mailings.
Confirm is built on the PLANET Code, a 12-digit barcode:
- The first two digits represent the service (21=Origin Confirm
or 22=Destination Confirm).
- The next nine digits identify the mail piece (see Figures 2
and 3 in section 5, from the
manual,
for more detail).
- The 12th digit is a check-sum digit that helps USPS detect errors.
- For more information about printing and generating PLANET barcodes,
please visit
here.
Contact the USPS manager of the
Planet program
at the post office to obtain more information on the formatting and
placement of PLANET barcodes.
The United States Postal Service uses the EAN-128 barcode (also known
as Code 128 and GS1-128) for special services such as delivery confirmation.
When used for the USPS, the IDAutomationC128L font provided in
the Code 128 Barcode
Font Advantage Package and the
Postnet Barcode
Font Advantage Package should be printed at 16 points, which will
produce a height of .75" and an X dimension of .013" as required. The
IDAutomationC128M font may also be used at 18 points to achieve
a greater X dimension (a wider barcode) with the same height.
Other products that support the printing of the Code 128 symbology
include IDAutomation
Barcode Components,
Label Software
and the Image Generator.
For information about formatting USPS GS1-128 (UCC/EAN128) barcodes
with IDAutomation products, refer to the
USPS
portion of the Code 128 Barcode FAQ.
OCR-A is not a barcode but a font that enables text to be easily
read by OCR (Optical Character Recognition) scanners at the post office.
When used for the USPS, the IDAutomationOCRa font provided in
the OCR Font Advantage
Package and the
Postnet Barcode
Font Advantage Package should be printed at 9 points. This size
is required for USPS scanners to automatically read the address when
the barcode is unavailable or not readable.
The
Facing Identification Mark (FIM) is a type of barcode with vertical
and horizontal bars used to identify business reply, courtesy reply
and OCR-readable mail. This barcode type is only provided in the
Postnet
Barcode Font Advantage Package and should be printed at 36 points.
Before sending the printed barcodes to the post office,
IDAutomation suggests verifying the result with a verifier, which is
provided in the form of a
hand-held 2D barcode image reader. The image reader will grade the
barcodes with a quality assurance test and report possible problems.
Below is an example of the output received when scanning a Postnet barcode
with the
IDAutomation 2D Barcode Scanner:
>>> PQA <<<
POSTNET: 62 Bars, nominally from 02.54 to 03.05 in. in Width
Bar Sequence: 10011000110011001100010100000111100000110100011000101010011001
[A] (Ok) < Tall Bar Heights: 0.130 in.
[B] (Hi) < Short Bar Heights: 0.058 in.
[A] (Ok) < Bar Widths = 0.021 in.
[A] (Ok) < Inter-Bar Gaps = 0.024 in.
The
IDAutomation 2D Barcode Scanner also reads OCR-A and may help verify
the correct printing of OCR text.
IDAutomation provides several
font tools, macros
and source code samples that are free to use with IDAutomation barcode
fonts, and will automatically format the data to the fonts. Additionally,
IDAutomation Barcode
Components automatically perform all necessary calculations. Therefore,
manual check digit calculations are usually not necessary.
To manually calculate the check digit for the Postnet barcode:
- Ensure the start/stop character is added to the beginning and
ending of every Postnet barcode. When using
IDAutomation
Postnet Barcode Fonts, the parentheses are used for start and
stop characters; "(" for start and ")" for stop. Start and stop
codes are also located at the "!, *, s, and S" characters in the
font.
- The last digit of the printed POSTNET barcode symbol is a check
digit. The check digit is obtained by determining the number, that
when added to the sum of all numbers in the POSTNET code, will produce
a multiple of 10. For example; the check digit for the POSTNET number
of 33727-1426 is 5 because (3+3+7+2+7+1+4+2+6=35 and 35+5=40) Therefore,
the sum of all POSTNET data including the check digit must be a
multiple of 10.
- The actual font characters used to print this POSTNET code would
be (3372714265).
- The IDAutomation
Online Barcode Font Encoder may be used to verify check digits,
or to create barcodes one at a time.
To manually calculate the check digits for USPS EAN128 / GS1-128,
please refer to the
USPS
section of the Code 128 Barcode FAQ.
The USPS
Intelligent Mail (Aka: OneCode & 4-State Customer Barcode) is very
complex to create and contains many more calculations than a simple
check digit. The source code used to create Intelligent Mail barcodes
can be provided with the purchase of the Unlimited Developer License
and a signed
Source Code
License Agreement for one of the
products supporting Intelligent Mail & OneCode barcodes.
For additional information, please visit
The U.S. Postal Service. Intelligent
Mail, OneCode ACS and OneCode Confirm are trademarks of the
U. S. Postal Service.
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