Driving licence number layout: 'legacy' (7 digits), 'smart_card_b' (B followed by 7 digits), or 'nic_based' (the holder's NIC number).
'legacy'
'smart_card_b'
'nic_based'
Driving licence number layout:
'legacy'(7 digits),'smart_card_b'(B followed by 7 digits), or'nic_based'(the holder's NIC number).