The arrangement of RMB serial numbers will keep changing. Recently, there have been RMB banknotes with serial number arrangements such as "A0A0000001" in the market, leaving many citizens confused about whether they can be used normally. In response to this, a relevant person in charge of the central bank stated yesterday that the People's Bank of China has recently adjusted the serial number arrangement of RMB banknotes, and the public should not use the serial number arrangement as a basis for determining the authenticity of RMB.