Education in Venezuela is compulsory up to high school. Classes are conducted in Spanish in non-sectarian schools. Education is free for all, and every citizen has the right to attend public schools. The educational system in Venezuela is highly centralized. For this reason, changes or innovations that occur will affect the whole country. Public and private schools are subject to supervision by the Ministry of Education, Culture and Sports. Private schools must meet the same standards as those required in the public schools. For all levels of education there are public and private institutions. The structure of the whole educational system is comprised of Basic Education (Educación Básica), which lasts nine years (from 5 to 14 years); Diversified Secondary Education (Educación Media Diversificada), which lasts 2 years (14 to 16); and Specialized Secondary Education (Educación Media Profesional), which lasts three years (from 14 to 17), after which the student is awarded a technical degree. Secondary education (Educación media) is divided into two cycles: Diversified and Professional. Training for bachilleres in science, arts, or humanities lasts two years, and training for professional or mid-level technicians técnicos medios lasts three years.