"Official" CB Language projects are hosted here:
forge.joomlapolis.com/projects/lan-cb
If you do not see your language listed its because no one has taken on as project manager for the language.
If you are interested please contact me (click the little person icon below my post to visit my profile and send me a quick message expressing interest).
You can also download latest translation instructions and english template from here:
forge.joomlapolis.com/projects/lan-cb/files