as defined to Internal audit plan. Internal Audit to determine whether the system is effectively implemented and maintained. 5 auditors were assigned base on objectivity and impartiality of the audit, auditors did not audit their own works. Skill and competence of auditor is satisfactory. Audit program is planned base on status and important of the processes and areas including the result of previous audits. Result from last internal found 6NC for last period audits and all NCs were followed up by MR every month.