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 999 46, Subcommittee (SC) 9 which develops International Standards for the identification and description of information resources. Ms. Janet Shuter from United Kingdom was project leader for ISO 999. ISO 999 ISO 999 (Information and documentation—Guidelines for the content, organization and presentation of indexes) is an ISO standard which provides the information industry with guidelines for the content, organisation and presentation of indexes to a wide range of documents including books, Periodicals, electronic documents, films, images, maps, and three-dimensional objects. It covers the choice and form of headings and subheadings used in index entries once the subjects to be indexed have