Another motivation for this study stems from the roles of the audit committee and IAF within an organisation’s overall corporate governance system. Specifically, the efforts of the IAF to adhere to good corporate governance principles are influenced by the power and attitude of the audit committee through that committee’s oversight duties. However, prior research has virtually ignored the potential impact of audit committee characteristics on internal audit conformance with the ISPPIA. As a consequence, this study makes a valuable contribution to the literature in the field of internal auditing and specifically enlightens knowledge and understanding of how internal audit conformance with the ISPPIA is influenced by audit committee attitudes and audit committee operational characteristics.