The European Charter for Regional or Minority Languages (ECRML) is a European treaty (CETS 148) adopted in 1992 under the auspices of the Council of Europe
Huh, wonder what the Council of Europe thinks of Ukraine's language law:
The Venice Commission, the Council of Europe’s top advisory body on constitutional matters, said that several of the law’s articles, including article 25, “failed to strike a fair balance” between promoting the Ukrainian language and safeguarding minorities’ linguistic rights.
You have no clue what you're talking about. Maybe sit down and listen a little?