scope:

Specifies a common interface by wich financial transaction card originated messages may be interchanged between acquires and card issuers, message structure, format and content, data elements and values for data elements. Also specifies a numbering system for institution identification codes for financial institution, identification number and the procedures used for the registration of institution identification codes. Establishes procedures for a maintenance agency for codes used in this standard, the method of applying for codes and the method of obtaining lists of codes.