National Emission Standards for Hazardous Air Pollutants: Miscellaneous Organic Chemical Manufacturing

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On November 10, 2003, EPA promulgated national emission standards for hazardous air pollutants (NESHAP) for miscellaneous organic chemical manufacturing. Several petitions for judicial review of the final rule were filed in the U.S. Court of Appeals for the District of Columbia Circuit. Petitioners expressed concern with various requirements in the final rule, including applicability of specific operations and processes, the leak detection and repair requirements for connectors, criteria to define affected wastewater streams requiring control, control requirements for wastewater streams that contain only soluble HAP (SHAP), the definition of process condensers, and recordkeeping requirements for Group 2 batch process vents. In this action, EPA proposes amendments to the final rule to address these issues and to correct inconsistencies that have been discovered during the review process.