To use public transport in Slovenia, you need to wear a surgical or an FFP2 face mask, practice hand hygiene and keep a physical distance from others.
Containment measures which apply to international journeys and transit are subject to the pandemic situation in the countries on your planned route, so make sure to check COVID-19 information for each relevant country before you travel. You can find up-to-date information about travel restrictions, embassy contact and other relevant information by country.