Pre-primary education lasts one year. It is provided to 6-year-old children (in exceptional cases – 5-year-old children) and is free of charge, and universally available, but not compulsory, except for special cases as mentioned above. Pre-primary education groups are set up in kindergartens or schools. In more remote rural communities, such groups can be set up at multifunctional community centres or children may be taken on a school bus free of charge to the nearest school where any such group is set up. Pre-primary education groups are attended by about 90% of pre-school age children.