
Privately printed domestic forms and labels feature a Package Identification
Code (PIC) represented by a Code 128 barcode.
The Code 128 Barcode Format for Package Identification Code is
made up of four fields totaling 20 characters. The four required data fields
are:
-
Service Type Code (STC):
Service Type Codes are 2-digit designators used to represent type of product
and service used for each item. Use one of the following numbers depending on
the service being used: Certified Mail (71), Insured Mail (73), Registered Mail
(77), and Return Receipt for Merchandise (81).
-
Customer ID:
9-digit; DUNS number that uniquely identifies the customer
-
Package Sequence Number (PSN):
8-digit; fixed sequential number
-
Modulus 10 Check digit: It is a digit added at the end of a sequence of
numbers that validates the authenticity of the number. It can be automatically
calculated and encoded by Barcode Professional if needed.

Sample of a USPS Package Identification Code Barcode (USS Code 128) barcode
Note: Please refer to the Class
Reference documentation for more information about the properties and methods
stated in this document.
In order to get a Sample of a USPS Package Identification Code
Barcode (USS Code 128) barcode image, please follow these steps:
-
Set the Symbology
property to UspsPicCode128
-
Setting up dimensions and quiet zones:
-
Set the BarWidth
property to a value ranging from 0.015 to 0.017 (Values are expressed in
Inches)
-
Set the BarHeight
property to 0.75 (Values are expressed in Inches)
-
Set the QuietZoneWidth
property to 0.25 (Value is expressed in Inches)
-
Set the TopMargin and BottomMargin properties to 0.125 (Values
are expressed in Inches)
-
Set the Code property with the value to encode i.e. 19 or 20 digits