The graduate program in linguistics, which culminates in a PhD degree, is intended to be completed in six years. The University of Chicago operates on the quarter system. Graduate students normally register for three courses per quarter, for three quarters per year. Students generally take three to four years of coursework. In the first two years, students take eight foundational courses selected from thirteen available options. Six of these eight classes must be completed during the student's first year in the program. In addition to these foundational courses, students must also take a methods course and three additional graduate-level courses in linguistics. In the second and third years, students continue taking courses and write two qualifying papers under faculty supervision. In addition to these major landmarks, students are required to satisfy a non-Indo European language requirement and to pass a reading examination in an additional language other than English. In years two and three, when students are writing qualifying papers, they must also take the Research Seminar course.