合約海事監督的主要職責是： (a) 處理有關船隻航行監察中心原址重置和提升船隻航行監察系統（航監系統）的工作； (b) 協助推行新航監系統，並從使用者的角度提供意見； (c) 參與安裝新航監系統和其後的工作； (d) 協助就新航監系統擬訂建議和指引、設計和發展培訓課程； (e) 就推行新航監系統與本地港口使用者和附近的船隻航行監察當局聯繫； (f) 在船隻航行監察中心或葵涌控制站執行值班督導員的職務；以及 (g) 在有需要時執行任何其他職務。

A Contract Marine Controller is mainly deployed on : (a) dealing with matters relating to the in-situ relocation of the Vessel Traffic Centre (VTC) and the associated VTS system upgrading exercise; (b) assisting in implementing the new VTS system and offer contributions from users’ perspective; (c) participating in the installation and post-installation activities of the new VTS system; (d) assisting in drafting proposals and guidelines, designing and developing training program for the new VTS system; (e) liaising with local port users and neighbor VTS authorities for implementation of the new VTS system; (f) taking up the duty as a watch supervisor of VTC or Kwai Chung Control Station (KCCS); and (g) discharging any other duties as and when required.