(1) A reference in this Act to CO 2 e megatonnes , in relation to an HFC, is a reference to the quantity of the HFC that results from multiplying its mass in megatonnes by its 100 - year global warming potential.
(2) If a substance is or contains a mixture of 2 or more HFCs, the quantity of the substance, expressed in CO 2 e megatonnes, is the quantity that results from adding together the quantities of each of those HFCs, expressed in CO 2 e megatonnes.