ISO 4217 codes (STANAG 1059, 9th edition) use "X" codes for imaginary exercise countries ranging from XXB for "Brownland" to XXR for "Redland", as well as for major commands such as XXE for SHAPE or XXS for SACLANT. Consequently, ISO 4217 can use "X" codes for non-country-specific currencies without risk of clashing with future country codes. The inclusion of EU (denoting the European Union) in the ISO 3166-1 reserved codes list, allows the euro to be coded as EUR rather than assigned a code beginning with X, even though it is a supranational currency. The ISO 4217 standard includes a crude mechanism
ISO/IEC JTC 1/SC 39 Austria, Czech Republic, Islamic Republic of Iran, Ireland, Kenya, Poland, Spain, and Switzerland. ISO/IEC JTC 1/SC 39 has one published standard, ISO/IEC 19395 and is currently working on developing a number of standards within the field of sustainability for and by Information Technology. Some standards within this field currently under development by ISO/IEC JTC 1/SC 39 include: ISO/IEC JTC 1/SC 39 ISO/IEC JTC 1/SC 39 Sustainability for and by Information Technology is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates