There are certain conditions that must be met, including that car buyers must be at least 21 years old and hold ownership of the car for at least five years. The vehicle, which must be manufactured in Thailand, cannot be worth more than one million baht and cannot have an engine capacity exceeding 1,500 cc. Cars must be purchased from 16 September 2011 to 31 December 2012 and refunds will be made from 1 October 2013 onwards.