Versions of s. 127(10.64)(a)

where an eligible Canadian public corporation (in this paragraph referred to as the “first corporation”) has more than one taxation year ending in the same calendar year and in two or more of those taxation years it is a member of a consolidated group in which another eligible Canadian public corporation has a taxation year ending in that calendar year, the expenditure limit of the first corporation for each taxation year in which it is in the same group as the other corporation ending in that calendar year is, subject to the application of paragraph (b), an amount equal to its expenditure limit for the first such taxation year determined without reference to paragraph (b);