April 1

It is clear from further elucidations given by Shoghi Effendi that Bahá’ís may vote for political posts only when they can do so upon a non-party line, without affiliating themselves with any political party or organization. 
- The Universal House of Justice  (From a letter dated 13 September 1998 to the National Spiritual Assembly of the Bahá’ís of Canada; included in ‘Messages to Canada’)