Versions of s. 27.1(2)

If at any particular time a taxpayer that owns one emissions allowance, or two or more identical emissions allowances (for the purposes of this subsection two or more emissions allowances will be considered identical if they could be used to settle the same emissions obligations), acquires one or more other emissions allowances (in this subsection referred to as newly acquired emissions allowances), each of which is identical to each of the previously-acquired emissions allowances, for the purposes of computing, at any subsequent time, the cost of the taxpayer of each of the identical emissions allowances,