Quorum requirements for a referendum to be valid
Bulgaria
Answer
Optional referendum - turnout quorum
Source
Act on Direct Participation of Citizens in Government and Local Government of29 May 2009, Article 23.
http://www.lex.bg/bg/laws/ldoc/2135636485 (inBulgarian)
Comment
For the valid conductof a referendum, as many voters as in the last elections to the NationalAssembly must participate, but it must be more than 20% of all citizens withvoting rights.