The second part is usually held in early January and consists of up to four exams. The Portuguese exam is required of all candidates, and so is an exam about all subjects. The remaining required exams (on the third day of this second part) differ depending on the candidate's intended major, usually focusing on more difficult or specific topics. For example, prospective Engineering majors are tested in Math, Physics and Chemistry, while Law School applicants have to take History, Geography and Math exams, and Medical School candidates are examined in Physics, Chemistry and Biology. The Portuguese language exam includes, in addition to essay questions, a student-written essay. In the current format, candidates take only one exam per day over a period of three or four days. Some majors also require specific exams: applicants for Architecture, Design and Arts must attend for such tests.