Education is free at all levels. The education system in Saudi Arabia is primarily under the jurisdiction of the Ministry of Education and the Technical and Vocational Training Corporation (TVTC). Other authorities such as the Ministry of Defense and Aviation, the Presidency of the National Guard, and the Ministry of the Interior provide their affiliates and children with education at all levels, consistent with Ministry of Education guidelines. The highest authority that supervises education in Saudi Arabia is the Supreme Committee for Educational Policy, established in 1963.