National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters

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On September 13, 2004, EPA promulgated national emission standards for hazardous air pollutants (NESHAP) for industrial, commercial, and institutional boilers and process heaters. In this action, EPA is proposing a limited number of amendments to the NESHAP. In response to a petition for reconsideration, EPA is proposing and requesting comment on an amendment allowing for consolidated testing of commonly vented boilers under the emission averaging provision. In addition, EPA is proposing amendments and technical corrections to the final rule to clarify some applicability and implementation issues raised by stakeholders subject to the final rule.