The Lodo referee irreplace, AI SENSIVES of art. 808-ter of the Italian Civil Code civ., Can be to be canceled only for i the following reasons: 1) if the convention of the arbitrator is disabled, or the referees have pronounced on conclusions that uncertain from ti e the relative exception is it was raised in the procedure arbitration; 2) if the referees not are states nominated with the forms and in modes established by the convention referee; 3) if the praise is state pronounced by chi not could be named Referee A Norma of the article 812; 4) if the referees not si are keen to rules taxes from parts as condition validity of the praise; 5) if not it is state observed in the procedure referee the principle of the contradictory. i these reasons, the praise irrital, wait its nature replacement of the agreement negotiating of the parts, is annulable only if the decision of the referee is fruit one one of the vices of the will that determine precisely the cancellation of the contract.