Requirements for a referendum to pass
Antigua and Barbuda
Answer
Mandatory referendum - qualified majority
Source
The Antigua andBarbuda Constitution Order 1981, section 47 (5.c)
http://aceproject.org/ero-en/regions/americas/AG/Antigua%20and%20Barbuda%20-%20Constitution
Comment
For mandatory referendum - 2/3 of all the votes validly cast; as for the optional referendum, there are no legalspecifications.