This Symbology is also known as RM4SCC, RoyalMail4SCC, British Royal Mail 4-State Customer Code and Royal Mail Barcode

This Symbology is used by Royal Mail (United Kingdom) post office for Postal code and automatic mail sorting. It provides information about the address of the receiver.
It encodes alpha-numeric characters (0-9, A-Z), as well as start and stop bar characters. It comprises four types of bars (the four states), each of which has a distinct name, value and barcode symbol.

4-State Barcode Bars

Sample of a British Royal Mail 4-State Barcode

In order to get a British Royal Mail 4-State barcode image, please follow these steps:

• Set the Symbology property to RoyalMail
• Setting up dimensions and quiet zones:
  • Set the Postal4StateTrackerBarWidth property to a value ranging from 0.015 to 0.025 (Values are expressed in Inches)
  • Set the Postal4StateTrackerBarHeight property to a value ranging from 0.04 to 0.06 (Values are expressed in Inches)
  • Set the Postal4StateBarsSpacing property to a value ranging from 0.015 to 0.025 (Values are expressed in Inches)
  • Set the QuietZoneWidth property to 0.08 (Value is expressed in Inches)
  • Set the TopMargin and BottomMargin properties to 0.08 (Value is expressed in Inches)
• Set the Code property with the value to encode i.e. with the postcode. The value to encode can contain numeric characters (0-9) and/or alpha characters (A-Z)
• Barcode Professional will automatically generate the required Start & Stop bars
  • Tip: You can rid of those bars by setting up to False the Postal4StateAddStartStopChar property
• Barcode Professional will automatically generate and append the checksum value
  • Tip 1: You can disable this behavior by setting up to False the AddChecksum property
  • Tip 2: You can leave AddChecksum property set to True but rid of the checksum value from the Human Readable text by setting up to False the DisplayChecksum property

Code property = ABC123 will produce the following barcode image: