2019-19669: Approval and Promulgation of Air Quality Implementation Plans; District of Columbia; Reasonably Available Control Technology State Implementation Plan for Nitrogen Oxides Under the 2008 Ozone National Ambient Air Quality Standard
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The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the District of Columbia. This revision pertains to reasonably available control technology (RACT) requirements for nitrogen oxides (NO<INF>X</INF>) under the 2008 8-hour ozone national ambient air quality standard (2008 ozone NAAQS). The District of Columbia's submittal for the NO<INF>X</INF> RACT for the 2008 ozone NAAQS: Amends existing regulatory provisions to add new or more stringent regulations or controls that represent RACT control levels for combustion turbines and associated heat recovery steam generators and duct burners, amends the applicability provisions of these regulations to include all combustion turbines and associated heat recovery steam generators and duct burners, and adds definitions; includes a source specific NO<INF>X</INF> RACT determination for four specific emissions units at one major stationary source of NO<INF>X</INF>; includes a certification that, for other categories of sources, NO<INF>X</INF> RACT controls already approved by EPA into the District of Columbia's SIP for previous ozone NAAQS are based on currently available technically and economically feasible controls and continue to represent NO<INF>X</INF> RACT for 2008 8-hour ozone NAAQS implementation purposes; and (4) removes carbon monoxide emissions limits for combustion turbines that no longer exist in the District of Columbia. This action is being taken under the Clean Air Act (CAA).
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
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