Open Procedure, Pursuant To Art. 71 Of Legislative Decree 36/2023, For The Assignment Of The Support Service For The In-House Management Of The Voluntary Collection And Executive Assessment Of The Imi, Tari/Tarip And Cup Revenues Of The Municipality Of Formello, Pursuant To Law 160/2019, To Be Awarded With The Criterion Of The Most Economically Advantageous Offer Based On The Best Quality/Price Ratio.