The academic year begins on 1 September of the current year and ends on 31 August of the next year (in reality, however it ends in May/June). The studies in one academic year may be divided into two semesters or rarely in three trimesters. The teaching process includes various forms of instruction such as lectures, seminars, exercises, laboratory work, projects, practical training, consultations, etc. The credit system following the rules of the European Credit Transfer System (ECTS) has been introduced in 1998 for the organisation of all levels and forms of higher education study. The student's standard load is expressed by the number of sixty credits per academic year and thirty credits per semester. The school of higher education determines the total number of credits required for due completion of the study in its respective stages.