All foreign nationals who have entered the territory of Bulgaria are obliged to register within 48 hours after their entry into the country. They have to register their address in Bulgaria either at the services for administrative control of foreign nationals, or at the nearest district police station, depending on the address where they are staying. This registration includes: full name, date of birth, citizenship, as well as the number and series of their identity documents. Address changes also have to be reported within 48 hours.

Individuals or legal entities, which provide shelter to foreign nationals, are obliged to notify within 48 hours either the relevant service for administrative control of foreign nationals, or the nearest district police station. If a foreign national is staying in a hotel, the receptionists are obliged to perform this duty. If a foreign national is paying a private visit, the Bulgarian host is obliged to register the foreigner who is his guest.