Open Procedure Tender Pursuant To Art. 71 Legislative Decree. N. 36/2023 For The Assignment Of The Cleaning Service Of Streets, Squares, Public And Common Areas, Collection, Transport And Disposal Of Waste And Related Services Within The Port Area Of ​​Savona And Vado Ligure [Rti To Be Established S.V. Port Service Srl And Tedde Group Srl]