(1) A donation to a trade union, other than a contribution to the union's political fund, is not a political donation for the purposes of this Part.
(2) A trade union is not a political organisation for the purposes of section 365 (meaning of "political expenditure").
(3) In this section -
"trade union" has the meaning given by section 1 of Trade Union and Labour Relations (Consolidation) Act 1992 (c. 52) or Article 3 of the Industrial Relations (Northern Ireland) Order 1992 (S.I. 1992/807 (N.I. 5));
"political fund" means the fund from which payments by a trade union in the furtherance of political objects are required to be made by virtue of section 82(1)(a) of that Act or Article 57(2)(a) of that Order.