Students follow a general curriculum during their first two years of secondary education (grades 9-10), and then get sorted during the last two years of secondary education (grades 11-12) into a general track (Humanistic-Scientific Mid-level Education, EMHC), or a vocational track (Technical-Professional Mid-level Education, EMTP~). In practice, however, tracking happens from grade 8, when students enrol in secondary school. Students that are tracked in 8th grade are more likely to remain in this track during all secondary education. The upper secondary VET curriculum consists of 12 hours of general education per week, compared to 27 hours in the general track. The upper secondary VET curriculum also includes 26 hours of vocational education (MINEDUC, 2016). Students obtain the secondary school-leaving certificate (licencia de ensehanza media) after completing the four grades of upper secondary education.