11For section 9(2) of the Trade Union (Amalgamations etc.) Act (Northern Ireland) 1965 substitute—
“(2)In this Act " Great Britain union " means a trade union or employers' association within the meaning of the Trade Union and Labour Relations Act 1974, being either—
(a)a union whose name is for the time being entered in the list of trade unions or of employers' associations under section 8 of that Act; or
(b)a union or association whose name is not so entered, but whose principal office is situated in England, Wales or Scotland.”