2. The Licensee shall publish in accordance with regulation 8 a reference interconnection offer. The reference interconnection offer shall include a description of the interconnection offerings broken down into components according to market needs and specify the charges and other terms and conditions on which they are offered. The Licensee may set different tariffs, terms and conditions for interconnection for different categories of organisations which are authorised to provide networks and services, where such differences can be objectively justified on the basis of the type of interconnection provided or the relevant national licensing conditions or both but such differences may not result in distortion of competition and, in particular, the Licensee shall apply the appropriate interconnection tariffs, terms and conditions when providing interconnection for its own services or those of its subsidiaries or partners in accordance with paragraph 1 of part I of this Schedule. The Licensee shall comply with a requirement by the Director to impose changes in the reference interconnection offer where justified. Where an organisation makes changes to the published reference interconnection offer, adjustments required by the Director may be retrospective in effect, from the date of introduction of the change.