卢森尼亚语
In April 2019, a group of linguists (including Aleksandr Dulichenko), supported a proposal that was addressed to the ISO, requesting suppression of the code (rue) and division of Rusyn language in two distinctive and separate languages, that would be named as: "East Rusyn" language (designating "Carpathian Rusyn" varieties), and "South Rusyn" language (designating "Pannonian Rusyn" varieties). In January 2020, the ISO authorities rejected the request.