All service providers or licensees who are authorized to own or operate telecommunication networks, or use wireless waves shall adjust their conditions to comply with the provisions of this law within no more than one year from the date of publication of CITRA’s implementing regulations. Chapter Three Licensing Communications Networks and Services Article (16) Establishment, operation, management, or provision to public of public telecommunication networks, internet services, international or land telecommunication, or advertisement of anything of that type telecommunication shall be allowed only after obtaining a license from CITRA in accordance with the provisions of this law and its implementing regulations. State-owned public networks shall be governed by the provisions of this Law. Article (17) CITRA may issue instructions specifying types of private networks, and guidelines and technical conditions for establishment and operation of them. CITRA also may stipulate its approval to establish some types of those networks, as necessary. Article (18) In accordance with provisions of the above Article (17), private telecommunication networks may not be established and operated without obtaining a license for that from CITRA except for the license necessary for use of radio frequencies. Article (19) Private telecommunication networks may be connected to another only through access to public networks in accordance with a written agreement between the owners or operators of such networks, as the case may be upon the instructions issued by CITRA on the guidelines and technical conditions required for connection. CITRA’s approval may be required for connection of some types of such networks if needed in the manner that that guarantees the principle of competition and no monopoly. Article (20) Whoever owns, operates or manages a private telecommunication network may not provide public telecommunication services via that network. Article (21) A- CITRA may decide to establish, operate, and manage public telecommunication networks, offer the public telecommunication service, international access platform, or international access networks, land telecommunication structure, or land telecommunication service that rely on the State's scarce resources (frequencies and digitization), and fiber optics throughout the country or part of it. In this case, the Board shall announce as it deems appropriate the licensing decision and the instructions related to the procedures and criteria of selection of the licensee in accordance with the type of the service. B The service referred to in the above paragraph (A) shall be licensed through public tenders in 13