Open Procedure For The Conclusion Of A Single-Operator Framework Agreement, Pursuant To Articles. 71 And 59, Paragraph 3, Of Legislative Decree No. 36/2023, For The Assignment Of Administrative Support Services To The Assistance Of Ta.Ri Taxpayers. And To The Requests Relating To The Deflationary Instruments Of The Ta.Ri Litigation, Divided Into 2 (Two) Lots, For A Duration Of 48 (Forty-Eight) Months.