Lanzhou recruits couples to be on duty.

Mainly responsible for mastering the dynamic maritime supervision information in the jurisdiction, specifically responsible for the management and implementation of water traffic in the jurisdiction, coordinating related navigation safety guarantee work, navigation communication (police) management, dynamic information processing of water traffic safety, VTS and CCTV monitoring duty, and seasonal water safety work; Perform the duties of the office of the Maritime Search and Rescue Center, and undertake tasks such as on-site command and on-site support for daily duty and emergency response (including oil and chemical pollution emergency response). (vts is the abbreviation of traffic management and cctv is the abbreviation of terminal closed-circuit monitoring system)

The duty officer's job is mainly to manage the traffic of ships applying to enter the port and monitor the navigation of ships in the waters under his jurisdiction through radar. The traffic control center is on duty 24 hours a day and needs shifts.