Official with an agreement of both sides after negotiation including a time schedule with the relevant owner of land and building or the person who has authority to manage such land and building: (a) carrying out other necessary matters including entering, inspecting, measuring, taking records on levels, taking soil samples, digging pits, examining the surface soil for the purpose of enabling to select and decide whether the land site is suitable or not; (b) placing, laying, installing and connecting necessary Network Facilities above and under such land or water for the purpose of providing Network Service and related services and taking actions to ensure the security of the equipment; (c) entering for inspecting, maintaining and repairing the Network Facilities. 42. The Service Licensee shall, if there is a transfer of the ownership of the land and building where the agreement to do business contained in section 41 has been obtained by the licensee, seek agreement in order to continue with installation or connection of Network Facilities in the said land and building. 43. Where a Service Licensee installs, maintains, repairs, alters and removes the Network Facilities, he shall not cause any harm or obstruction to the public road, traffic, water traffic or air traffic. 44. The Service Licensee shall not enter upon any land without giving prior notice to the owner for making prior surveys for the purpose of installing or removing the Network Facilities. 45. The Service Licensee shall, in conducting installation or maintenance of the Network Facilities, take necessary preventive measures to minimize the damage. 15