Usually, those who want to study languages, mathematics, or informatics in-depth apply to high school after 7th grade. Students graduating from high-school must successfully complete 12 Grade and sit matriculation exams in Bulgarian language and Literature, as well as one (or two) subject(s) of choice. They obtain a Диплома за средно образование / Diploma za sredno obrazovanie (Diploma of Secondary Education) with GPA composed of their grades from mandatory and specialist modules in 11 and 12 Grade and the grades from the matriculation exams.
Students who want to pursue advanced studies in languages, mathematics, or informatics typically enter high school after 7th grade. Upon graduation, they must pass a set of exams in Bulgarian language and literature, along with one or two subjects of their choice. They receive a Diploma of Secondary Education (Diploma za sredno obrazovanie) based on their grades from mandatory and specialist modules in 11 and 12 Grade, as well as their scores on the matriculation exams.