4. The Authority shall consider representations made by a person who has been, or reasonably expects to be, adversely affected by an interim regulatory measure, and may change such regulatory measure in light of such representations. 5. As soon as reasonably practicable and within 45 days from approving an interim regulatory measure, the Authority shall: a) Expressly revoke the interim regulatory measure; or b) Initiate the steps set forth in paragraph 4 of article 19 in order to determine what, if any, regulatory measure should replace the interim regulatory measure. 6. An interim regulatory measure shall automatically expire four months after it has been approved unless revoked earlier by the Authority. Article 22 Provision of information 1. The Authority may require service providers to file with the Authority, at annual or quarterly intervals and in connection with any review, investigation or other regulatory proceeding, reports and documents containing financial and operating data, statistics and other information about their activities necessary and proportionate for the Authority to perform its functions and responsibilities and exercise its powers pursuant to the present Decree-Law. 2. A request for information made pursuant to the preceding paragraph shall prescribe the level of detail, form, time limits, periodicity, and objective pursuant to the Decree-Law for which it is required and define a reasonable and adequate electronic format for reports and documents to enable the Authority to analyse and maintain a database of such information. Article 23 Confidential information 1. Without prejudice to the provisions set forth in paragraph 4 of this article, the Authority and/or any expert, consultant, arbitrator, mediator and/or any other person included in the List of Experts referred to in article 25 below, appointed to the Review Panel pursuant to article 26, taking part in a dispute resolution, mediation or administrative settlement of disputes pursuant to articles 54 to 56, or even where he/she intervenes as an expert pursuant to paragraph 10 of article 40, shall: a) Not disclose confidential information without the written consent of the person who has provided such information; and b) Implement appropriate technical and administrative procedures to prevent the unauthorised disclosure of confidential information.