Self Maintenance Services In Particular, The Contract Has As Its Object The Conclusion Of Framework Agreements, With One Or More Economic Operators, Pursuant To Art. 154 Of Legislative Decree 36/2023 And Ss.Mm.Ii., For The Assignment Of The Repair, Maintenance And Related Activities Service, Of The Vehicles With A Total Mass At Full Load Less Than Or Equal To 3.5 Tons Belonging To The Fleet D