National Emission Standards for Hazardous Air Pollutants for Manufacturing of Nutritional Yeast

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The Environmental Protection Agency (EPA) is proposing standards to limit emissions from facilities that manufacture nutritional yeast and are major sources of hazardous air pollutant (HAP) emissions, particularly acetaldehyde. The proposed standards would carry out section 112 of the Clean Air Act, as amended November 15, 1990 (the Act), to protect the public health by reducing these emissions from new and existing facilities. The Act requires these sources to achieve an emissions level consistent with installing and operating maximum achievable control technology (MACT). The proposed standards would eliminate approximately 43 percent of nationwide HAP emissions from these sources.