1. Assisting the People's Committee of Cat Hai district and in coordinating with the city's agencies, departments and branches, agencies and units of the district People's Committee in implementing the tasks to conserve , developing and promoting the value of monuments, famous places and landscapes; preserve environmental sanitation and safety at sea, protect the value of the world biosphere reserve. Participate in the implementation of programs and plans to promote the image and attract tourists to visit and travel in the bay areas of the Cat Ba archipelago. 2. Organize monitoring of changes in the environment, impacts on ecosystems and values of relics, famous places and landscapes, and promptly detect pollution, environmental incidents and reports The People's Committee of Cat Hai district and notify the competent authorities to take measures to prevent, handle violations and remedy consequences of adverse impacts on the environment and cultural values of bays in the archipelago Cat Ba. 3. Collecting waste at tourist sites on bays of Cat Ba archipelago, contracts on garbage collection with organizations and individuals providing service activities in bays, transporting to garbage disposal areas discharge in accordance with the regulations of the competent authority. 4. Coordinate with the commune and town administrations and specialized sections of the district People's Committees in managing and elaborating detailed regional planning, when anchoring of aquaculture cages, seafood and ships and boats are in service in the bays of Cat Ba archipelago, to organize the allocation of water surface to households licensed to raise fish cages and mollusks on tidal flats according to the approved planning. 5. Coordinate with specialized sections to advise the district People's Committee in appraising and giving comments on socio-economic development projects on bays in its management area. 6. Coordinating with localities and functional branches in ensuring safety and order in the bays of Cat Ba archipelago; coordinate to formulate and organize the implementation of plans on natural disaster prevention, search and rescue, and handle incidents occurring in bays of Cat Ba archipelago. 7. Organizing the collection of charges and fees according to regulations and as decentralized by the district People's Committees.