ISO 4217 or banking. At the 17th session (February 1978), the related UN/ECE Group of Experts agreed that the three-letter alphabetic codes for International Standard ISO 4217, "Codes for the representation of currencies and funds", would be suitable for use in international trade. Over time, new currencies are created and old currencies are discontinued. Frequently, these changes are due to the formation of new governments, treaties between countries standardizing on a shared currency, or revaluation of an existing currency due to excessive inflation. As a result, the list of codes must be updated from time to time. The ISO 4217 maintenance agency
ISO 28000 operational benefits that are realized throughout supply chains and business practices. Benefits include, but are not limited to: ISO 28000:2007 is a certifiable standard. ISO 28000 ISO 28000:2007 (Specification for security management systems for the supply chain) is an International Organization for Standardization standard specifying requirements of a security management system particularly dealing with security assurance in the supply chain. Parts of the standard are considered "publicly available", while the entire specification can be purchased from the International Standards Organization. ISO 28000:2007 was developed to codify operations of security within the broader supply chain management system. The PDCA management systems