Until recently, Sierra Leone had a 3-6-3-4 formal education structure. There are still three years of pre-primary school, which has an official entry age of three. Primary school still has an official entry age of six and a duration of six grades. At the end of the cycle, students sit for the National Primary School Examination (NPSE). Secondary school is still divided into two cycles: lower secondary and upper secondary.
Lower secondary, which is known as Junior Secondary School (JSS), still consists of grades 7-9 and culminates in the Basic Education Certificate Examination (BECE). In the 3-6-3-4 system, upper secondary, which is known as Senior Secondary School (SSS), consisted of grades 10-13 and culminated in the West African Senior School Certificate Examination (WASSCE). In addition, Sierra Leone has multiple upper secondary vocational education tracks that last three to four years (ISCED 2011 mapping for 2013 school year).