This Order commences various provisions of Schedules 16 and 21 to the Coroners and Justice Act 2009 (c. 25). The provisions in Schedule 16 provide for a person to be disqualified for the appropriate extension period from holding or obtaining a driving licence where a court in Scotland imposes a sentence of imprisonment and orders a person to be disqualified. In that case the court must add an extension period to the disqualification period to take into account the time spent in custody. The provisions in Schedule 21 make various minor and consequential amendments to the Road Traffic Offenders Act 1988 (c. 53) which set out the circumstances when the extension period generated by provisions in Schedule 16 are to be disregarded.