1. National regulatory authorities may, in accordance with Article 68, impose obligations on undertakings to meet reasonable requests for access to, and use of, specific network elements and associated facilities, in situations where the national regulatory authorities consider that denial of access or unreasonable terms and conditions having a similar effect would hinder the emergence of a sustainable competitive market at the retail level, and would not be in the end-user's interest.

National regulatory authorities may require undertakings inter alia:

(a) to give third parties access to, and use of, specific physical network elements and associated facilities, as appropriate, including unbundled access to the local loop and sub-loop;

(b) to give third parties access to specific active or virtual network elements and services;

(c) to negotiate in good faith with undertakings requesting access;

(d) not to withdraw access to facilities already granted;

(e) to provide specific services on a wholesale basis for resale by third parties;