Reference periods as referred to in Article 15(2)
ANNEX ISupplementary provisions
ANNEX I Reference periods as referred to in Article 15(2) Sector Reference period (years) Railways 30 Water supply/sanitation 30 Roads 25-30 Waste management 25-30 Ports and airports 25 Urban transport 25-30 Energy 15-25 Research and innovation 15-25 Broadband 15-20 Business infrastructure 10-15 Other sectors 10-15