Approval and Promulgation of Air Quality Implementation Plans; Texas; Revisions to Control of Air Pollution from Nitrogen Compounds from Stationary Sources

The EPA is taking direct final action to approve revisions to the Texas State Implementation Plan (SIP), 30 TAC, Chapter 117 Control of Air Pollution from Nitrogen Compounds. These revisions concern two separate actions. First, we are approving revisions to Texas SIP, Chapter 117 emissions specifications for lean burn engines fired on landfill or other biogas at minor sources of Nitrogen Oxides (NOx). Second, we are approving revisions to Texas SIP, Chapter 117 to include low temperature drying and curing ovens used in wet-laid non-woven fiber mat manufacturing operations when nitrogen containing resins or other additives are used. These two actions affect NOx sources operating in the Dallas Fort-Worth (DFW) 1997 8-hour ozone nonattainment area. The EPA is approving these two actions pursuant to section 110 of the Federal Clean Air Act (CAA, Act).