With reference to the preliminary investigation closed (VIS to observe the obligations to replace cast iron pipelines, the commitment relating to the complete accelerated replacement of the cast iron pipes located at the Ferrara distribution plant was concluded by the envisaged date of 31 December 2014, while the commitment relating to the inspection of the entire network classified as “hemp and lead joint” and “asbestos cement” is proceeding and will conclude with the complete replacement of the same as per the timescales envisaged by the Regulation of the Quality of the Gas Distribution service (RQDG).