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Italy's Interministerial Decree 'Minimum Requirements,' effective June 3, 2026, mandates that non-residential buildings with thermal systems exceeding 290 kW must install building automation and control systems (BACS) of at least Class B by January 1, 2025. This decree, part of a broader effort to implement the EU Directive 844/2018, aims to enhance energy efficiency and reduce fossil fuel dependence, requiring BACS installations to have a payback period of under six years without external incentives.