The structure of every higher education institution includes main and auxiliary units. The following are regarded as auxiliary units: laboratories, administration, sports grounds, university libraries and publishing houses, information departments, groups engaged in cultural activities, research services etc.

Individuals who do not have academic status are:

• administrative and administration-supporting staff;
• auxiliary staff;
• teachers, who are engaged in teaching of non-specialists in languages, sport, arts;
• career consultants;
• researchers.

According to article 53 of the Higher Education Act, institutions of higher education have the right to hire specialists and experts to contribute to their teaching and scientific research activities. The conditions and order for the selection and hiring of these persons as well as the specific names of the positions they occupy are decided according to the Law on the Development of Academic Staff in the Republic of Bulgaria and  the regulations of the high schools.

Administrative and administration-supporting staff, as well as the auxiliary staff are recruited in line with the generally applied practices under the provisions and conditions of the Labour Code. Non-academic staff is hired under labour contracts or under contacts of services depending on the position occupied or the nature of the service.

Teachers are selected and hired according to the provisions and the conditions of the Academic Degrees and Academic Ranks Act and the regulations of the institutions of higher education. They may be hired under fixed-term contracts or under termless labour contracts according to the provisions and conditions of the regulations of the institutions of higher education.