Да, конечно. Все официально. https://ru.wikipedia.org/wiki/%D0%98%D1%80%D1%82%D1%8B%D1%88,_%D0%BF%D1%80%D0%B5%D0%B2%D1%80%D0%B0%D1%89%D0%B0%D1%8E%D1%89%D0%B8%D0%B9%D1%81%D1%8F_%D0%B2_%D0%98%D0%BF%D0%BF%D0%BE%D0%BA%D1%80%D0%B5%D0%BD%D1%83