1.Planning and executing investigations for major rail occurrences.

2.Processing occurrence notifications, conducting investigation and analysis, as well as identifying causes for a major rail occurrence.

3.Proposing investigation reports and recommendations for improving rail safety.

4.Managing the progress and human resources for all major rail occurrences investigations.

5.Collecting, managing and studying investigations evidences related to a major rail occurrence.

6.Planning and executing the professional development of major rail occurrences investigators as well as reviewing their performance.

7.Contacting and coordinating with domestic and international organizations responsible for investigating rail occurrences.

8.Drafting and amending legal regulations governing rail occurrence investigations and proposing explanations for regulations.

9.Addressing other items related to the investigation of major rail occurrences.