Tender Procedure Pursuant To Art. 50, Paragraph 1 Letter. B) Of Legislative Decree No. 36/2023 To Be Launched Through Direct Negotiation On The Mepa Portal With A Single Economic Operator For The Assignment Of The Proactive And Reactive Surveillance Service With Remote Operations Centre, Including The Predictive And Corrective Maintenance Of The Cctv Intrusion Detection Systems, The Access Control Of The National Museums Of Vomero, And Extra Services For Any Further Interventions, For The Duration Of No. 4 Years, As Well As The Expansion And Restoration Of The Security System Of The Castel Sant'Elmo Site. Cpv: 32323500 -8 - Video Surveillance System.