Electronic and Postal Communications (Access, Co-location and Infrastructure sharing) G.N. No. 429 (contd) of services according to a final co-location and infrastructure sharing agreement, or the resolution of pre-contract disputes. Infrastructure sharing 18. In promoting the efficient, economic and harmonized utilization of infrastructure, the Authority may inquire into and require modification of any agreement or arrangement entered into between licensees who have the effect of limiting either efficient and harmonized utilization of infrastructure or the promotion of competition in the provision of public electronic communication services or electronic communications networks. Performance measures 19. The Authority may, from time to time, require information to be filed by infrastructure providers for purposes of evaluating the provision of infrastructure sharing services to infrastructure acquirers on a non-discriminatory basis. Penalties 20. Any person who contravenes the provisions of these Regulations commits a offence and shall, upon conviction, be liable to a fine not less than five million shillings or to imprisonment for a period not exceeding three months or to both. Revocation GN No. 266 of 2005. 21. The Tanzania Communications (Access and Facilities) Regulations are hereby revoked. Dar es Salaam 29th November, 2011 MAKAME M. MBARAWA Minister for Communication, Science and Technology 182