Where on an amalgamation of two or more trade unions—
there is in force in relation to each of the amalgamating unions a political resolution and such rules as are required by this Chapter, and
the rules of the amalgamated union in force immediately after the amalgamation include such rules as are required by this Chapter,
the amalgamated union shall be treated for the purposes of this Chapter as having passed a political resolution.
That resolution shall be treated as having been passed on the date of the earliest of the ballots on which the resolutions in force immediately before the amalgamation with respect to the amalgamating unions were passed.
Where one of the amalgamating unions is a Northern Ireland union, the references above to the requirements of this Chapter shall be construed as references to the requirements of the corresponding provisions of the law of Northern Ireland.