These include lecturers from educational institutions as well as highly qualified experts who participate in the organization, implementation and methodological back-up of the training process. Besides, use is also made of experts whose activity is directly related to the management and control of the training process. The enhancement of the qualification of the full-time lecturers is carried out according to an approved annual plan.

The part-time lecturers and instructors and their attestation are reviewed annually by an expert Training-methodological Council and are approved by the head of the Bulgarian gas centre.

The part-time assistants are lecturers of theory and in some cases of practice. Guest-lecturers from Russia and the EU are invited for some specialized courses.