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Texas Administrative Code
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Title 30 Environmental Quality
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Part 1 Texas Commission On Environmental Quality
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Chapter 113 Standards of Performance for Hazardous Air Pollutants and for Designated Facilities and Pollutants
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Subchapter B National Emission Standards for Hazardous Air Pollutants (fcaa, §112, 40 Cfr Part 61)
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Division 1 Radionuclide Neshaps
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Rule 113.55 Radon Emissions from Phosphogypsum Stacks (40 Cfr 61, Subpart R)
