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In December 1994, pursuant to section 112(d) of the CAA, EPA promulgated the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Ethylene Oxide Commercial Sterilization and Fumigation Operations (59 FR 62585). The NESHAP established standards for both major and area sources. EPA completed a residual risk and technology review for the NESHAP in 2006 and, at that time, concluded that no revisions to the standards were necessary. In this action, EPA will conduct the second technology review for the NESHAP and assess potential updates to the rule. To aid in this effort, EPA issued an advance notice of proposed rulemaking (ANPRM) that solicited comment from stakeholders and undertook a Small Business Advocacy Review (SBAR) panel, which is needed when there is the potential for significant economic impacts to small businesses from any regulatory actions being considered. EPA is also planning to undertake community outreach as part of the development of this action.