Starting December 1, Sofia will implement its low-emission zone (LEZ) once again, extending its scope to include additional vehicle categories. The zone, which applies to the “small ring” of Sofia—defined by the boulevards "Vasil Levski," "Patriarch Evtimiy," "Skobelev," "Slivnitsa," and "Opalchenska"—will ban vehicles that do not meet certain eco-standards. Specifically, cars without an eco-standard, as well as those falling into the first and second eco-categories, will be prohibited from entering....
