OBS_VALUE: Conditions for operators in rail services:  - Having a section in charge of railway transport safety.- Having at least 01 person in charge of safety, who has a university degree in rail transport and has at least 03 years of direct working experience in railway transport management and operation.- =staffs assigned the main responsibility for technical management of transport operation must have university degree and at least 03 years of working experience in railway transport operation.- Train drivers with train driving license.- Other professional certificates for other titles: train chief/deputy chief, locomotives and carriages staff; patrol workers, bridges and tunnels; guarding staffs…