Tonj South County of Warrap State will graduate 54 old prison wardens including two women on Wednesday after undergoing 45 days of training.
Prison Training Director Lual Machar said the training aimed to equip the old wardens with new rules and regulations because they were recruited between 1976 and 1977, Don Bosco Radio reported.
He added that the 30 prison wardens who graduated in April will join in the ceremony.
Mr Machar urged Tonj citizens to respect and cooperate with the prison wardens.