ISO 4217 added to the standard. A number of currencies are not included in ISO 4217, because these currencies are: (a) minor currencies pegged 1:1 to a larger currency, even if independently regulated (b) a legal tender only issued as commemorative banknotes or coinage, or (c) a currency of an unrecognized or partially recognized state. These currencies include: See for a list of all currently pegged currencies. Despite having no official recognition in ISO 4217, the following non-ISO codes are sometimes used locally or commercially. In addition, GBX is sometimes used (for example on the London Stock Exchange) to denote Penny sterling,
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