Category:DE:Region specific tag
From OpenStreetMap Wiki
For tags that are only used in specific regions by definition (and not simply by use).
- kct_red=*, kct_green=*, kct_yellow=*, kct_blue=*, etc from Czech Republic (see Cs:WikiProjekt Česko/Editační standardy a konvence#Turistické značení)
- ref:zsj=* from Czech Republic (see Import UIR-ZSJ and taginfo)
- pe:ubigeo=*, apparently from Peru (see taginfo)
- MOE:years=* - to describe the range of student's age in New Zealand's schools (see taginfo).
If you know others, feel free to add them here.