A change of the academic supervisor may be initiated based on a written request submitted by the doctoral student and approved by both the current and proposed supervisors. The request is reviewed at a meeting of the disciplinary doctoral council. Based on the decision of the council, the Doctoral School prepares an order on the change of supervisor and concludes an agreement on the development and supervision of the doctoral thesis. If necessary for the development of the thesis, the disciplinary doctoral council may approve a co-supervisor or research consultant for the doctoral student.