ISO 4217 instead of translated currency names or ambiguous currency symbols. ISO 4217 codes are used on airline tickets and international train tickets to remove any ambiguity about the price. The first two letters of the code are the two letters of the ISO 3166-1 alpha-2 country codes (which are also used as the basis for national top-level domains on the Internet) and the third is usually the initial of the currency itself. So Japan's currency code is JPY—JP for Japan and Y for yen. This eliminates the problem caused by the names "dollar, franc, peso" and "pound" being used in dozens
International Organization for Standardization was created in 2009 for the purpose of "[s]tandardization in the field of energy efficiency and renewable energy sources". ISO has 162 national members. ISO has three membership categories: Participating members are called "P" members, as opposed to observing members, who are called "O" members. ISO is funded by a combination of: ISO's main products are international standards. ISO also publishes technical reports, technical specifications, publicly available specifications, technical corrigenda, and guides. International standards Technical reports Technical and publicly available specifications Technical corrigenda ISO guides These are meta-standards covering "matters related to international standardization". They are named using the format