40 CFR §98.493

1. (a)Calculate GHG emissions required to be reported in § 98.492(a) using the applicable methods in paragraph (b) of this section.
2. (b)For each coke calcining unit, calculate GHG emissions according to the applicable provisions in paragraphs (b)(1) through (4) of this section.
   1. (1)If you operate and maintain a CEMS that measures CO2 emissions according to subpart C of this part, you must calculate and report CO2 emissions under this subpart by following the Tier 4 Calculation Methodology specified in § 98.33(a)(4) and all associated requirements for Tier 4 in subpart C of this part. Auxiliary fuel use CO2 emissions should be calculated in accordance with subpart C of this part and subtracted from the CO2 CEMS emissions to determine process CO2 emissions. Other coke calcining units must either install a CEMS that complies with the Tier 4 Calculation Methodology in subpart C of this part or follow the requirements of paragraph (b)(2) of this section.
   2. (2)Calculate the CO2 emissions from the coke calcining unit using monthly measurements and equation 1 to this paragraph (b)(2).
   3. (3)Calculate CH4 emissions using equation 2 to this paragraph (b)(3).
   4. (4)Calculate N2O emissions using equation 3 to this paragraph (b)(4).