The symbol comprises the following elements:

• Eight symbol characters that represent numeric digits

• Check digit

If fewer than eight characters are specified, padding characters are added.

Code 32 uses five bars and four spaces to encode each character. Three of the elements are wide, and the other six are narrow.

This symbology supports the following alphanumeric characters: 

• All numeric digits (0-9)

• All uppercase letters except for A, E, I, and O

The Code 32 human readable interpretation begins with the ASCII character "A". This character is not encoded into the barcode.

Code 32 uses a check digit that is based on the modulo 10 (mod 10) algorithm.