OBS_VALUE: For obtaining the locomotive traction permit, National infrastructure operator of the RK conducts tests for issuance of a permit to the locomotive driver and confer relevant qualification. This permit is issued by the KTZ subsidiary, KTZ - freight services (https://ktzh-gp.kz/ru/activity/documents/?sid=134&PAGEN_1=2, Order No. 268-ЦЗ). One of the main requirements for issuance of the permit - knowledge of the applicable RK legislation and professional experience.