c) The viability and suitability of different forms of mobile number portability available; d) The specific services to be subject to mobile number portability; and e) The regulatory objectives provided for in article 2 of the present Decree-Law. 3. Where the Authority finds that the costs of implementing mobile number portability outweigh the benefits likely to result from its implementation, the Authority may decide not to implement mobile number portability and shall promptly notify the relevant service providers of its decision. 4. For the purposes of the present Decree-law, number portability shall refer to a service enabling a subscriber to change service provider for a given telecommunications service while retaining the same number, including the leading digit. Section 69 Domain names 1. 2. Subject to consent by relevant parties and the procedures and conditions of, and agreements with, the Internet Domain Name Authority, the Authority may, after public consultation carried out in accordance with paragraph 4 of article 19, recommend to the Minister that it, or another appropriate body or entity, assume responsibility for the management, registration and allocation of all domain names under the code of TimorLeste. The Minister shall consider the Authority’s recommendation, if any, under the preceding paragraph and, if he or she approves, take such steps as are required to implement it, including, if necessary, the preparation and proposal of any necessary contractual documents or legislation. CHAPTER XV ACCESS TO PROPERTY Article 70 Access to State-owned land and property 1. For the purpose of installing, operating and maintaining telecommunications facilities, network resources and telecommunications equipment and for providing telecommunications services, service providers may, upon the authorization or decision by the Government official responsible for State-owned land and properties: a) Use State-owned land; b) Install, operate and maintain such telecommunications facilities on such land as needed;