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Show H A P s Task Group The hazardous air pollutants task group were charged by the work group to reduce the 188 list of H A P s considered for regulation to a manageable size. Through dialogue between industrial, federal and state regulators and environmental stakeholders, the task group decided to produce three lists of H A P s : HAPs of Interest, H A P s for Further Testing, and H A P s for Potential Regulation. The H A P s of Interest list were developed through a screening mechanism. This list was regarded as requiring further investigation. The H A P s for Testing were selected from this list after considering the practicality of measuring them. These H A P s were included in the Boiler Work Group's Test Plan. HAPs for Potential Regulation were H A P s that may need to be regulated or controlled. This list may be shorter or longer than the H A P s of Interest list. Control Technology Ranking Task Group The Boiler W o r k Group charged the Control Technology Ranking task group to identify available control technologies for reduction of HAPs. The task group identified the control technologies by exarnining the E P A ICCR Inventory Database and the Information Collection Request (ICR) Database. The relative effectiveness of these technologies were ranked for reduction of metallic, organic, inorganic (Acid gases) and mercury emissions. The rankings were developed to support development of model plants for determination of possible below the M A C T floor regulatory options. Economic Analysis Task Group The Economic Analysis task group were charged with developing an economic sensitivity analysis for the control technologies identified by the Control Technology task group State Regulations Task Group The State Regulations task group were charged with obtaining regulations information from each state. This information was to be used to determine how various H A P s were being regulated and controlled at the state level. This information is needed for determining the M A C T floor. EXPLANATION OF MACT FLOOR The Maximum Achievable Control Technology (MACT) floor for a category or subcategory is the least stringent regulation that can be promulgated for an existing source. The Coordinating Committee in general could not reach agreement on whether pollution prevention should be part of the M A C T floor for units regulated under Section 112 [2]. The emissions in the regulation "shall not be less stringent, and may be more stringent than - (A) The average emission limitation achieved by the best performing 12 percent of the existing sources (for which the Administrator has emission information), excluding those sources that have, within 18 months before the emission standard is proposed or within 30 months before such standard is promulgated, whichever is later, first achieved a level of emission rate or emission reduction which complies, or would comply if the source is not subject to such standard, with the lowest achievable emission rate (as defined by section 171) applicable to the source category and prevailing at the time, in the category or subcategory for categories D:\jps\icci\bwg\boflerwg 4 |