Twenty a number of-choice questions are asked, only two incorrect answers allowed for a passing grade, five further questions per mistake. Four minor errors are allowed for the road driving examination—the impediment course is cross-fail. Driving licences in Singapore are issued by the traffic police. The minimal age to acquire a provisional driving licence , which allows the holder to practice driving while underneath the supervision of an authorised driving instructor, is 18. A provisional driving licence is obtained once the individual has handed the fundamental principle test.