As of April 12, all citizens in Bulgaria are obliged to wear a disposable or reusable face mask or another option covering the nose and mouth (including cloth, scarf, etc.)
when they are in indoor or outdoor public places (including public transport, shops, parks, churches, monasteries, temples, halls, streets, bus stops, etc.). Public places are also considered to be all places which are freely accessible and/or intended for public use. This also applies to places where public services are provided.
This is what an order of Bulgaria's Minister of Health Kiril Ananiev reads, which will be in force until April 26, inclusive.
Violators will be penalized.