The legal position of religious communities is defined by special legislation, specifically regarding government funding, tax benefits, and religious education in schools. Other matters are left to each religious community to negotiate separately with the government. Registration of the communities is not mandatory, but registered communities become legal persons and enjoy tax and other benefits. The law stipulates that to be eligible for registration, a religious group must have at least 500 believers and be registered as a civil association for 5 years. Religious groups based abroad must submit written permission for registration from their country of origin.