8.ALine Calling Responsibility8.B“In” Ball8.C“Out” Ball8.DCode of Ethics for Line Calling8.ELine Call Certainty8.F“Out” Call and Signal8.F.1Valid Line Call8.F.2Dead Ball8.F.3Out Call Timing8.F.4Partner Communication8.GOverriding a Call8.HPartner Disagreement (Doubles)8.IRequesting Opponent’s Opinion8.JSpectator Involvement