Depending on the local conditions, there are three types of pre-primary education available for children aged 3-5: preschool classes, kindergartens and childcare centres. Private schools usually offer a three-year kindergarten programme. There are two types of preschool education available in state schools: two-year kindergarten and one-year preschool classes attached to primary schools in rural areas. Preschool education is not compulsory. Under the 15-year free education policy launched in 2009, pre-primary education is to be provided free of charge.