Section 1
These By-Laws may be amended at any Convention by a two-thirds (2/3) majority of the votes cast.
Section 2
These By-Laws may be amended between Conventions by approval of a two-thirds (2/3) majority of those voting in a membership referendum ordered by a two-thirds (2/3) majority of the Executive Council. Thirty (30) days' notice of such amendment shall be given to each Local.