CSAPR NO
(c) CSAPR NOXOzone Season Group 3 secondary emissions limitation. (1) The owner or operator of a CSAPR NOX Ozone Season Group 3 unit equipped with selective catalytic reduction controls or selective non-catalytic reduction controls shall not discharge, or allow to be discharged, emissions of NOX to the atmosphere during a control period in excess of the tonnage amount calculated in accordance with paragraph (c)(2) of this section, provided that the emissions limitation established under this paragraph (c)(1) shall apply to a unit for a control period only if: (i) The unit is included for the control period in a group of CSAPR NOX Ozone Season Group 3 units at CSAPR NOX Ozone Season Group 3 sources in a State (and Indian country within the borders of such State) having a common designated representative and the owners and operators of such units and sources are subject to a requirement for such control period to hold one or more CSAPR NOX Ozone Season Group 3 allowances under 97.1006(c)(2)(i) and paragraph (b) of this section with respect to such group; and (ii) The unit was required to report NOX emissions and heat input data for all or portions of at least 367 operating hours during the control period and all or portions of at least 367 operating hours during at least one historical control period under the CSAPR NOX Ozone Season Group 1 Trading Program, CSAPR NOX Ozone Season Group 2 Trading Program, or CSAPR NOX Ozone Season Group 3 Trading Program. (2) The amount of the emissions limitation applicable to a CSAPR NOX Ozone Season Group 3 unit for a control period under paragraph (c)(1) of this section, in tons of NOX, shall be calculated as the sum of 50 plus the product (converted to tons at a conversion factor of 2,000 lb/ton and rounded to the nearest ton) of multiplying (i) The total heat input in mmBtu reported for the unit for the control period in accordance with 97.1030 through 97.1035; and (ii) A NOX emission rate of 0.10 lb/mmBtu or, if higher, the product of 1.25 times the lowest seasonal average NOX emission rate in lb/mmBtu achieved by the unit in any historical control period for which the unit was required to report NOX emissions and heat input data for all or portions of at least 367 operating hours under the CSAPR NOX Ozone Season Group 1 Trading Program, CSAPR NOX Ozone Season Group 2 Trading Program, or CSAPR NOX Ozone Season Group 3 Trading Program, where the unit's seasonal average NOX emission rate for each such historical control period shall be calculated from such reported data as the quotient (converted to lb/mmBtu at a conversion factor of 2,000 lb/ton, and rounded to the nearest 0.0001 lb/mmBtu) of the unit's total NOX emissions in tons for the historical control period divided by the unit's total heat input in mmBtu for the historical control period.