Under these schemes, a driver licensing authority, police force, or other organization keeps a record of the demerit points accumulated by drivers. When the prescribed point threshold is reached, the person’s licence would usually be automatically cancelled or suspended. Points may either be added or subtracted, depending on the rules of each scheme. A major offence may lead to more than the maximum allowed points being issued. Points are typically applied after a driving offence has been committed, and the licence cancelled a defined time, or after other conditions are met. If the total exceeds the threshold, the offender may be disqualified from driving for a time, or the driving licence may be revoked. After the licence suspension period has expired, the previous demerit points are cancelled.