Possibilities for RICAT libraries are:
Follett Classic - T plus less than 8 digits. May be used along with ONE of the other two formats listed below
Code 39, mod 43 - 14 digits, including material type and location code, uses letters and numbers, with a check digit
Code 39, mod 10 - 14 digits, including material type and location code, uses only numbers, zero through 9, with a check digit
A check digit is used to verify that the other digits in the barcode have been read correctly. It is calculated, using a formula, from the other digits in the barcode. If the check digit that is read at the end of the barcode equals the digit that is calculated from the other digits that have been read by the scanner, then the system knows that the barcode has been read completely and accurately.
If your library is using