(1) The Principal Act is amended as respects the year of assessment 2001 and subsequent years of assessment -

(a) by the insertion in Part 2 of the Table to section 458 of the following after "section 472":

"section 472C",

(b) by the insertion after section 472B of the following section:

"472C. Relief for trade union subscriptions.

(1) In this section -

'appropriate percentage', in relation to a year of assessment, means a percentage equal to the standard rate of tax for that year;

'specified amount', in relation to an individual for a year of assessment, means £74;

'trade union' means a body which is either -

(a) the holder of a negotiation licence under the Trade Union Act, 1941,

(b) an excepted body within the meaning of section 6 of that Act as amended by the Trade Union Act, 1942,

(c) a garda representative body established under the Garda Síochána Act, 1977, namely -

(i) the association known as the Association of Garda Sergeants and Inspectors established under regulation 5(1) of the Garda Síochána (Associations) Regulations, 1978 (S.I. No. 135 of 1978),