After testing with the Littlewoods Home Shopping group and NatWest bank, the concept was adopted by APACS (the UK Association of Payment Clearing Services) and streamlined to the three-digit code known today.
Setelah melakukan pengujian dengan Littlewoods Home Shopping group dan NatWest bank, konsep tersebut diadopsi oleh APACS (UK Association of Payment Clearing Services) dan disederhanakan menjadi kode tiga digit yang dikenal saat ini.