"Pre-shipment Verification of Conformity (PVoC)" is a new measure that Ken Bureau of Standards replaces in the past "Pre-shipment Inspection (PSI)" according to WTO rules. The measure stipulates that all goods entering Kenya must prove that they meet Kenya standards or are authorized by the ISO/IEC17025 system of laboratories, the International Laboratory Accreditation Co-operation ILAC or the International Association of Inspection Agencies (the International Federation of Inspection Agencies (IFIA) issued "product test certificate".