National spectrum management policy is once more a key issue facing the global telecommunications industry in order to meet the rapid growth in wireless services and the increasing demand for mobile broadband. Three approaches are usually suggested to overcome the deficiencies of the command and control approach to spectrum management: spectrum markets, spectrum commons, and spectrum easements. Meanwhile, while a few countries have reformed or planned to reform their national policies, in most of the world, especially in the developing countries, radio spectrum is managed along the lines of traditional government administration due to different factors. Largely overlooked in current debates, however, is the influence of the international spectrum management regime on national policy reform. To address such influence, this thesis has examined the main research question 'How do the international radio spectrum management regime and national radio spectrum management policies interact?' With a focus on the cases of Egypt and UAE, this research has examined the research question regarding three main concepts, radio communication service allocation flexibility, technology neutrality, and opportunistic access in the TV White Spaces (TVWS), which are considered as main elements of the three alternative approaches to command and control. Data was collected through semi-structured interviews with main national and international actors. The main finding of the thesis is that the international spectrum management regime does not prevent adopting radiocommunication service allocation flexibility, technology neutrality, or opportunistic access in the TVWS. However, there are different elements of flexibility and restriction that have an influence on regulators' flexibility regarding radiocommunication service allocation, regulators' tendency towards technology neutrality, and deployment of opportunistic access in the TVWS. These elements are dependent on the country's geographical position, country's relationship with neighbouring countries, size of country market, being advanced in technology, interpretation of the international regulations, and national telecommunication market status.