National Emission Standards for Hazardous Air Pollutants: Area Source Standards for Prepared Feeds Manufacturing; Amendments

The EPA is taking direct final action to revise certain provisions of the area source national emission standards for hazardous air pollutants (NESHAP) for prepared feeds manufacturing published on January 5, 2010 (final rule). These revisions will clarify the regulatory requirements for this source category and ensure that those requirements are consistent with the record. The revisions address the generally available control technology (GACT) requirements for pelleting processes at large, existing prepared feeds manufacturing facilities, specifically removal of the cyclone 95-percent design efficiency requirement, as well as associated requirements for compliance demonstration, monitoring, reporting, and recordkeeping; clarification of the requirement that doors be kept closed in areas where materials containing chromium and manganese are stored, used, or handled; and clarification of the requirement to install a device at the point of bulk loadout to minimize emissions. These amendments are not expected to result in increased emissions or in the imposition of costs beyond those described in the January 5, 2010, final rule.