Air Plan Approval; Texas; Reasonably Available Control Technology

The Environmental Protection Agency (EPA) is proposing to convert its September 22, 2017 conditional approval of revisions to the Texas State Implementation Plan (SIP), addressing Oxides of Nitrogen (NOX) Reasonably Available Control Technology (RACT) for the TXI Operations, LP (Texas Industries, Inc., TXI) cement manufacturing plant in Ellis County, to full approval. The August 21, 2018 SIP submittal satisfies Texas' commitment which was the basis for our conditional approval of NOX RACT for this plant. Final approval of this SIP submittal will convert our earlier conditional approval to full approval. We are taking this action in accordance with the Clean Air Act (CAA, the Act) requirements.