The Purpose Of This Contract Is The Tax Advisory Service To Carry Out The Proper Monitoring And Fiscal Planning Of The Main Feature (Dual) That Holds The Ctti And Its Effects On The Tax On The Added Value. However, They Are Also Part Of The Object Of This Contract, The Review Of All The Tax Obligations That Apply To The Ctti And/Or Those That May Arise During The Life Of This Contract. The Detailed Description Is Collected In The Section "2. Service Description" Of The Technical Prescriptions (Hereinafter Pptp).