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/TC 68 Where appropriate, national standards setting bodies can propose existing national standards to ISO/TC 68 to become adopted as international standards with the approval of ISO/TC 68 and ISO. These standards must be submitted as New Work Items by three or more member countries of ISO/TC 68. In the late 1940s, members of the financial industry came together under the International Organization for Standardization (ISO) to begin developing technical standards for the banking industry to use on a world-wide basis. The original name of the organization working on banking standards was Technical Committee 68, or TC 68-Banking. Over time the scope