Air Quality State Implementation Plans; Approval and Promulgation of Implementation Plans; South Dakota; Infrastructure Requirements for the 2015 Ozone National Ambient Air Quality Standards; Revisions to Administrative Rules

The Environmental Protection Agency (EPA) is approving the State of South Dakota's January 15, 2020, State Implementation Plan (SIP) submission that addresses infrastructure requirements for the 2015 ozone National Ambient Air Quality Standards (NAAQS). Additionally, in this action, we are approving a SIP revision submitted by the State of South Dakota on January 3, 2020, that revises the Administrative Rules of South Dakota (ARSD), Air Pollution Control Program, updating the date of incorporation by reference of federal rules in ARSD chapters pertaining to definitions, ambient air quality, air quality episodes, Prevention of Significant Deterioration (PSD), new source review, performance testing, control of visible emissions, continuous emission monitoring systems, State facilities in Rapid City area, construction permits and regional haze program administrative rules. The EPA is taking this action pursuant to the Clean Air Act (CAA).