Paper size impossible to encounter ISO standard papers in day-to-day uses, with "Carta" (Letter), "Oficio" (Government-Legal) and "Doble carta" (Ledger/Tabloid) being nearly universal. In Canada, US paper sizes are a de facto standard. The government, however, also uses ISO paper sizes. There is an additional paper size, , to which the name "Government-Letter" was given by the IEEE Printer Working Group (PWG). It was prescribed by Herbert Hoover when he was Secretary of Commerce to be used for US government forms, apparently to enable discounts from the purchase of paper for schools, but more likely due to the standard use of trimming
Distributed ledger technology law the legislators are still silent about blockchain technology, in the United States several states already enacted legislation providing a framework for business and legal application of blockchain technology and enforceability of smart contracts. On 2 June 2016 Vermont became the first state, which recognised blockchain-based records having legal bearing in a court under the Vermont Rules of Evidence and defined blockchain technology as "mathematically secured, chronological, and decentralized consensus ledger or database, whether maintained via Internet interaction, peer-to-peer network, or otherwise" In March 2017, Arizona’s Electronic Transactions Act (the AETA) was amended by HB 2417 Act to clarify that “electronic