Section 096-145-3 - StandardsA.Control Technology Requirements. No later than May 1, 2003, any owner or operator of an affected source shall install, operate, and maintain NOx control technology on each unit. The affected source shall demonstrate that it sought NOx control technology that achieves the emission limitations in Subsection 3(B) of this Chapter. The Commissioner will approve the installation, operation, and maintenance of selective non-catalytic reduction (SNCR) technology, or an alternative control technology determined to achieve NOx reductions and air quality benefits essentially equivalent to what would be achieved if SNCR were applied to each unit.B.Emission Limitations(1) Beginning January 1, 2005, the NOx emission rate for electric generating units with a maximum heat input capacity of less than 750 million Btu per hour must not exceed 0.22 pounds per million Btu on a 90-day rolling average basis.(2) Beginning January 1, 2005, the NOx emission rate for electric generating units with a maximum heat input capacity of 750 million Btu per hour or greater must not exceed 0.15 pounds per million Btu on a 90-day rolling average basis.(3) Beginning January 1, 2005, the NOx emission rate for fossil fuel fired indirect heat exchangers, boilers, and resource recovery units with a maximum heat input capacity greater than 250 million Btu per hour must not exceed 0.20 pounds per million Btu on a 90-day rolling average basis.C.Emission Averaging. For the purpose of demonstrating compliance with this Chapter, any owner or operator with more than one affected source with a maximum heat input capacity of 750 million Btu per hour or greater at a facility may average the emissions between such units to meet the emission limitations in Subsection 3(B)(2) of this Chapter on a 90-day rolling average basis. Any owner or operator with more than one affected source with a maximum heat input capacity less than 750 million Btu per hour may average the emissions between such units to meet the emissions limitations in Subsection 3(B)(1) of this Chapter. Averaging must be done by dividing the sum of actual emissions from each affected source over the 90-day period by the sum of the heat inputs from the units over the 90-day period. Continuous emission monitoring systems that satisfy the requirements of 06-096 Code of Maine Rules (C.M.R.) ch. 117 must be employed to allow the use of this provision.D.Exemptions. Minor sources or units that can be limited to the minor source threshold as defined in 06-096 C.M.R. ch. 100 of the Department's rules are exempt from the requirements of this Chapter.06-096 C.M.R. ch. 145, § 3