This International Standard provides requirements and guidance for organizations in international supply chains to — develop and implement supply chain security processes; — establish and document a minimum level of security within a supply chain(s) or segment of a supply chain; — assist in meeting the applicable authorized economic operator (AEO) criteria set forth in the World Customs Organization Framework of Standards and conforming national supply chain security programmes. NOTE Only a participating National Customs Agency can designate organizations as AEOs in accordance with its supply chain security programme and its attendant certification and validation requirements. In addition, this International Standard establishes certain documentation requirements that would permit verification. Users of this International Standard will — define the portion of an international supply chain within which they have established security (see 4.1); — conduct security assessments on that portion of the supply chain and develop adequate countermeasures; — develop and implement a supply chain security plan; — train security personnel in their security related duties.