Powers Article 29. The Commission shall exercise the powers, functions and tasks thereof for attainment of the purposes covered under Article 4 herein and in accordance with the principles covered under Article 5 herein. Article 30. The Commission shall be vested with the following powers: 1. to define the relevant markets for electronic communications networks and/or services subject to regulation under this Act; 2. to study, analyze and prepare an assessment regarding the degree of competition on the relevant markets for electronic communications networks and/or services; 3. to designate the undertakings which have significant market power on the relevant market; 4. (amended, SG No. 105/2011, effective 29.12.2011) to impose, maintain, amend or withdraw specific obligations on the undertakings designated as undertakings with significant market power on the market, for attainment of the purposes of this Act; 5. as an exception, to impose justified and proportionate provisional specific obligations in the cases provided for in this Act; 6. to assign the provision of universal service; 7. to prepare, adopt and update a regulatory policy for the use of numbers, addresses and names for the implementation of electronic communications; 8. to prepare and adopt general and statutory administrative acts related to the powers vested in the Commission, in the cases provided in this Act; 9. (amended, SG No. 17/2009) to prepare, to adopt, or to make available for adoption by the competent state bodies of the statutory instruments of secondary legislation in the cases provided for in this Act; 10. to grant, modify, supplement, transfer, suspend, terminate or withdraw authorizations for use of an individually assigned scarce resource; 11. to grant and discontinue the validity of provisional authorizations for use of an individually assigned scarce resource; 12. to grant, modify, supplement, transfer, suspend, terminate or withdraw the authorizations for use of an individually assigned scarce resource for implementation of electronic communications over existing and/or new electronic communications networks for analogue terrestrial broadcasting, after a decision of the Council for Electronic Media; 13. to study and provide information to the Council for Electronic Media on the technical parameters needed for analogue terrestrial broadcasting of radio and television programme services, for a nucleated settlement, region or the entire territory of the Republic of Bulgaria as specified by the Council for Electronic Media, including available radio frequencies, admissible power of emission, possible points of emission, as well as other requisite technical information; 14. to prepare, adopt and update the National Numbering Plan; 15. to provide for use, reserve and withdraw numbers, addresses and names; 16. (new, SG No. 17/2009) to control the effective use of the numbers of the National Numbering Plan; 17. (renumbered from Item 16, SG No. 17/2009) to facilitate the provision by international organizations of numbers, addresses and names for electronic communications in the Republic of Bulgaria; 18. (new, SG No. 105/2011, effective 29.12.2011) contribute to the harmonization of specific numbers or numbering ranges within the European Union for the promotion of the functioning of the internal market and the development of pan-European electronic communications services; 19. (renumbered from Item 17, SG No. 17/2009, renumbered from Item 18, SG No. 105/2011, effective 29.12.2011) to represent the Republic of Bulgaria in the international organizations of