樹木管理辦事處隸屬發展局工務科綠化、園境及樹木管理組。該辦事處是樹木管理方面的政策層面機關，能提供相關專業知識，並負責就樹木管理事宜在政策上向執行部門提供指導。 樹木管理辦事處總監掌管樹木管理辦事處，直屬上司是綠化、園境及樹木管理組主管。主要職責包括： (a) 協助制訂樹木管理政策及策略，涵蓋政策構思、團隊管理，以至部門實施工作和提高公眾認知等各個方面； (b) 通過界定各執行部門的植物管理工作範圍；在中央層面頒布標準、指引和良好作業方式；協調跨部門工作；以及解決所出現的問題，確保在植物管理工作上有效實施「綜合管理方式」； (c) 向部門提供專家意見，並作為處理複雜個案方面的權威； (d) 按需要監督樹木風險評估安排的制訂、推行和檢討工作，以供部門採用； (e) 監督有關建立和維持樹木管理資料庫的工作； (f) 監督有關植物管理政策、作業方式及技術的研究； (g) 就植物管理事宜，包括識別可予改善的範疇和措施，與政府決策局／部門及外界聯繫；以及 (h) 協助進行與植物管理有關的社區參與、公眾教育、投訴處理及緊急應變安排等工作，包括會見傳媒，以及出席區議會和立法會會議。

The Tree Management Office (TMO) is under the Greening, Landscape and Tree Management Section in Works Branch of the Development Bureau. The TMO is the policy authority and a provider of expertise in tree management and gives policy steer on tree management matters to the executive departments. Reporting to the Head of Greening, Landscape and Tree Management Section, the Head of Tree Management Office (H/TMO) heads the TMO. His/Her main duties include: (a) To assist in the formulation of policies and strategies on tree management from policy inception and team management through departmental implementation and public awareness; (b) To ensure effective implementation of the "integrated approach" to vegetation management by defining the scope of vegetation management work of executive departments; promulgating standards, guidelines and best practices at the central level; coordinating inter-departmental efforts; and resolving issues when such arise; (c) To provide expert advice as well as act as the authority to departments in handling complex cases; (d) To oversee the development, implementation and review, as appropriate, of tree risk assessment arrangements for application by departments; (e) To oversee the setting up and maintenance of a tree management database; (f) To oversee research into vegetation management policies, practices and technologies; (g) To liaise with government bureaux/departments and external parties on vegetation management matters, including identifying possible areas and measures for improvement; and (h) To assist in community involvement, public education, complaint handling and emergency response arrangement on vegetation management, including media, District Council and Legislative Council appearances.