9 Network licence terms Licences are granted by the Government for a fixed period of up to 20 years. The geographical operating area of the telecommunications operator and the network coverage area may be defined in the licence. The following terms may be incorporated into a licence: 1) requirements promoting the aims in section 1; 2) terms supplementing the requirements in section 243 or technical regulations of Ficora specified in section 244 concerning the technical characteristics of communications networks or the efficient use of frequencies; 3) terms that concern the amount of capacity reserved for a programming licence holder or cooperation between programming licence holders in matters relating to capacity distribution or electronic programme guides; 4) terms on the broadcasting technology or encryption of broadcasts; 5) terms regarding the obligation of a licence holder to eliminate any interference caused by its operations to other radio communications complying with the regulations and to compensate the affected parties for the costs they incur in the process of eliminating such interference. A network licence for providing network service in a terrestrial mass communications network may be granted on the condition that the licence holder ensures that the Finnish Broadcasting Company Ltd and a programming licence holder referred to in section 22 and in section 3(1) of the Provincial Act on Radio and Television Broadcasting Operations (Ålands författningssamling (2011:95), Åland Island Statute Book) obtain the necessary capacity for operating the activity. By means of the licence terms referred to above, the Government shall ensure that the radio and television operators referred to in subsection 4 have access to the capacity necessary for the operations in all circumstances. Section 17 Amendment to the operating licence A licence may be altered during its validity period with the consent of the licence holder or otherwise if it is necessary for special reasons due to technical development, international treaty obligations, or an essential change in the operating conditions of an activity subject to a licence, change in market conditions or due to other essential changes. The terms of an operating licence granted by the Government may be amended upon application by the licence holder. The Government shall, before issuing a decision, inform the licence holder of how re-examination conducted by the Government would influence the operating licence, and allow the licence holder a reasonable time limit to withdraw the application. Section 18 Transfer of a licence A licence may only be transferred within a group of undertakings in the meaning of Chapter 1, section 6 of the Accounting Act. Such a transfer shall be notified immediately to the Government licencing authority. If the control in the meaning of section 1(5) of the Accounting Act or the effective control in respect of the licence holder changes, such a change shall be notified immediately to the