Are referendum results binding?

Spain
Answer
- Mandatory referendum - always
- Optional referendum - never
Source
Spanish Constitution 1978. Ley Orgánica 2/1980, de 18 de enero, sobre Regulaci?n de las Distintas Modalidades de Refer?ndum.
Ana Cristina Lopez
Head of electoral-cooperationunit. Ministry of the Interior, Spain. aclopez@mir.es / pielecciones@mir.es 0034 915371310