Electronic and Postal Communications (Access, Co-location and Infrastructure sharing) G.N. No. 429 (contd) electronic communications network and service; (d) there is insufficient capacity. Obligation s of dominant licensee 12.-(1) The Authority may impose any access-related obligations on a licensee declared to hold a dominant position in a relevant market. (2) Where such other access-related obligations are imposed, the Authority shall provide written reasons to the licensee. (3) The Authority may review obligations imposed on licensees under these Regulations when it conducts its periodic reviews under the methodology for determining market power. (4) The Authority shall, in complying with the provision of sub-regulation (3), consider whether to amend or withdraw any obligations that are in force and whether to impose additional obligations. (5) A licensee who has been declared by the Authority to hold dominant position in a relevant market shall(a) continue to offer, and not withdraw access to communications networks and communications infrastructure already granted, except on reasons determined by the Authority; (b) negotiate in good faith with access acquirer. (6) Where a licensee is declared to hold a dominant position in a relevant market, the authority may additionally require it to(a) give other licensees access to specified elements of either or both of the licenses’ communications networks and communications facilities; (b) provide access acquirer with access services; (c) provide communications services as may be specified by the authority on a wholesale basis for resale by other licensees; (d) grant open access to technical interfaces, protocols or other key technologies that are indispensable for 177