 Special cases are also listed in the table.Some letters are not used - these are listed in the (letters I, O and Z are not used to avoid ambiguity with numbers or other forms of local license plates).Since the prefix 'B' plate finished, the Land Transport Department decided to restart the prefix 'B' plate with 'BA', which consists of 3 letters and up to 4 numbers in the form of "Bxx 1234".