Article 60. Price revision.

1. The inclusion of price revision clauses is mandatory in the initial tender documents of the award procedures. 2. These clauses do not make changes that alter the general nature of the contract or framework agreement; they are activated upon the occurrence of particular conditions of an objective nature which determine a variation in the cost of the work, supply or service, up or down, exceeding 5 percent of the total amount and operate to the extent of 80 percent of the variation itself, in relation to the services to be performed. 3. For the purposes of determining the change in costs and prices referred to in paragraph 1, the following synthetic indices developed by ISTAT are used: a) with regard to works contracts, the synthetic construction cost indices; b) with regard to service and supply contracts, the indices of consumer prices, producer prices of industry and services and the indices of contractual hourly wages. 4. The cost and price indices referred to in the paragraph 3 are published, together with the related calculation methodology, on the institutional portal of ISTAT in compliance with the relevant European and national regulatory provisions regarding the communication and dissemination of official statistical information. With a provision adopted by the Ministry of Infrastructure and Transport, after consulting ISTAT, any further categories of indices or further typological or product specifications of the categories of indices identified by paragraph 3 are identified within the indices already produced by ISTAT. 5. To deal with the increased costs deriving from the price revision referred to in this article, the contracting authorities use: a) within the limit of 50 percent, the resources specifically set aside for unforeseen events in the economic framework of each intervention, without prejudice to the related sums to the contractual commitments already undertaken, and any further sums available to the same contracting authority and allocated annually in relation to the same intervention; b) the sums deriving from auction reductions, if no different destination is foreseen by the regulations in force; c) the available sums relating to other completed interventions under the responsibility of the same contracting authority and for which the relative tests or issues certificates of regular execution, in compliance with the expenditure accounting procedures and within the limits of the residual authorized expenditure available. EFFECTIVE: July 1, 2023