(19) Coordinate with appropriate government agencies the development of infrastructure requirements supporting a tourist zone such as, but not limited to, access roads to the zone, electric power brought to the proper line of the zone, airports, harbors, and other support facilities; (20) Coordinate with concerned government agencies the provision of social infrastructure requirements supporting a tourist zone as educational facilities, health centers, social and recreational outlets and other necessary amenities for the social upliftment of the populace and preservation of ecological balance; and (21) Exercise such other powers and functions that maybe devolved, necessary, proper, or incidental to the attainment of its mandate. SEC. 4. Organizational Structure. - The Department shall consist of the Department Proper, the Department Divisions, and Tourism Provincial Field Units. Chapter 2 Department Proper SEC. 5. Office of the Regional Secretary. - The Office of the Regional Secretary shall consist of the Regional Secretary and his/her immediate staff. SEC. 6. Assistant Regional Secretary. - The Regional Secretary shall be assisted by a Career Assistant Regional Secretary. SEC. 7. Functions of the Assistant Regional Secretary. - The Assistant Regional Secretary shall: (1) Assist the Regional Secretary in the formulation and implementation of Department's objectives and policies; (2) Oversee the administration of the Tourism Promotions, Marketing and Operations, and Tourism Planning and Policy Development of the Department, consistent with the mandate of the department, for which he/she shall be responsible to the Regional Secretary; (3) Serve as deputy to the Regional Secretary, in all matters relating to the operations of the Department; and (4) Perform such other functions as may be provided by law. Chapter 3 Department Services SEC. 8. Services of the Department. - The Department Services shall be composed of: 154