 The process consists of the general Portuguese exam, an interview to evaluate motivation and CV, and additional written and/or oral exams specific to each school and course.Candidates approved go through a separate "numerus clausus" or enroll directly at the discretion of the school's board.As what happens with the "Concurso Nacional" through the Exames Nacionais do Ensino Secundário (ENES), the Extraordinary Exam Process for over-23 years old candidates is more demanding and has a much higher selectiveness in public universities than in the public polytechnics.