COVID-19 What are the rules to enter Bulgaria with or without the EU Digital COVID certificate from an EU Member State or Schengen Associated country? As a third-country national coming from outside the EU and Norway, Switzerland, Iceland and Liechtenstein, may I enter Bulgaria without exceptional restrictions? What are the rules if I go abroad from Bulgaria, and when I return from abroad? Can I transit this country? May I enter Bulgaria by road, rail, air or ship?