You must determine CO2 process emissions from carbonate use in accordance with the procedures specified in either paragraphs (a) or (b) of this section.
(a)
Calculate the process emissions of CO2 using calcination fractions with Equation U-1 of this section.
Code of Federal Regulations
(b) Calculate the process emissions of CO2 using actual mass of output carbonates with Equation U-2 of this section.