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,
International Organization for Standardization a committee. Here are some abbreviations used for marking a standard with its status: Abbreviations used for amendments: Other abbreviations: International Standards are developed by ISO technical committees (TC) and subcommittees (SC) by a process with six steps: The TC/SC may set up working groups (WG) of experts for the preparation of a working drafts. Subcommittees may have several working groups, which can have several Sub Groups (SG). It is possible to omit certain stages, if there is a document with a certain degree of maturity at the start of a standardization project, for example a standard developed by another