June 20

…all matters without any exception whatsoever, regarding the interests of the Cause in that locality, individually or collectively, should be referred exclusively to the Spiritual Assembly in that locality, which shall decide upon it, unless it be a matter of national interest, in which case it shall be referred to the national body. 
- Shoghi Effendi  (From a letter dated 5 March 1922; ‘Unfolding Destiny’; also in ‘Baha’i Administration’)