Transparency of Lobbying, Non-Party Campaigning and Trade Union Administration Bill

In my trade union, the rulebook can be changed only by a change of rule motion to congress, and a rule change congress happens every two years. Has my hon. Friend any idea how my trade union—the GMB, one of the biggest trade unions—could comply by making the change to the rulebook under the restrictions the Bill will place on it for the 12 months prior to a general election?