By 1969, most independent bank charge cards had been converted over to either the BankAmericard or Master Charge cards.
Eventually, charge card issuing and processing became too large of a task for the banking industry to handle. That is what lead to the emergence of credit card associations such as Interlink Association, Western States Bank Card Association, and National BankAmericard Inc. Current associations include Visa and Master Card.
The next major changes in the credit card industry involved streamlining transaction processing and reducing credit card fraud. Electronic authorizations were developed in the early 1970s which allowed retailors the ability to check a customers credit limit 24 hours per day.