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EPA/AR

RIN: 2060-AN85

Publication ID: Spring 2008

Title: Risk and Technology Review Phase II Group 2
Abstract: All milestones are complete for this SAN. This SAN includes the ANPRM only. The source categories listed below were divided into 3 groups, groups 2A, 2B, and 2C, for proposal and promulgation. Please refer to SAN 5093.2 for the group 2A proposal and promulgation and SAN 5093.3 for the group 2B proposal and promulgation. SAN 5093.3 has not been initiated but will contain the group 2C proposal and promulgation. Under CAA Section 112(d)(6) EPA is required to review MACT standards and revise them "as necessary (taking into account developments in practices, processes and control technologies)" no less frequently than every 8 years. EPA also must evaluate the MACT standards within 8 years after promulgation and promulgate standards under CAA Section 112(f)(2) if required to protect public health with an ample margin of safety. EPA will combine the remaining MACT source categories requiring residual risk and technology reviews into several groups to enable us to more closely meet statutory dates, raise and resolve programmatic issues in one action, minimize resources by using available data and focusing on high risk sources, and provide consistent review and analysis. We will use available data including emissions from the most recent 2002 national emission inventory (NEI) and augment it with available site-specific data. This action was originally referred to as RTR Phase II and included 34 MACT standards and 50 source categories. We reduced the scope of this action and will now focus on RTR Phase II Group 2, which consists of 11 MACT standards covering 21 source categories with MACT compliance dates of 2002 and earlier. We plan to model each MACT source category to obtain inhalation risks, including cancer risk and incidence, population cancer risk, and noncancer effects (chronic and acute). We also plan to evaluate multipathway risk associated with those source categories with significant levels of persistent and bioaccumulative HAP. We published an ANPRM in March 2007 to solicit public comments and corrections on emissions data that will be used to assess risk for these source categories. Public comments and corrections were received by EPA for all source categories during the ANPRM 90-day comment period. The comments and corrections were compiled by source category and underwent review by OAQPS, the Regions, and the States. We will then remodel the categories based on the updated dataset (this will serve as the NPRM dataset). EPA will then identify risk reduction options, evaluate the effectiveness and cost of these risk reduction options and make acceptability and ample-margin-of-safety determinations in accordance with Benzene NESHAP decision framework. Where the need for additional controls are identified, standards would be developed that include technology, work practice, or performance standards as amendments to the existing MACT standards. The 11 MACT standards, the 21 source categories, and the associated NAICS codes are listed below: Aerospace Manufacturing and Rework Facilities, 336411 Marine Tank Vessel Loading Operations, 4883 Mineral Wool Production, 32799 Natural Gas Transmission and Storage, 486210 Oil and Natural Gas Production, 211 Pharmaceuticals Production, 3254 Group I Polymers and Resins, 325212 Epichlorohydrin Elastomers Production Hypalon Production Nitrile Butadiene Rubber Production Polybutadiene Rubber Production Styrene-Butadiene Rubber and Latex Production, Group IV Polymers and Resins, 325211 Acrylic-Butadiene-Styrene Production Methyl Methacrylate-Acrylonitrile-Butadiene-Styrene Production Methyl Methacrylate-Butadiene-Styrene Production Nitrile Resins Production Polyethylene Terephthalate Production Polystyrene Production Styrene-Acrylonitrile Production Primary Aluminum Reduction Plants, 331312 Printing and Publishing Industry, 32311 Shipbuilding and Ship Repair Operations, 36611
Agency: Environmental Protection Agency(EPA)	Priority: Other Significant
RIN Status: Previously published in the Unified Agenda	Agenda Stage of Rulemaking: Long-Term Actions
Major: No	Unfunded Mandates: No
CFR Citation: Not Yet Determined (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: CAA 112(f)(2), 112(d)(6)

Legal Deadline: None

Timetable:

Action	Date	FR Cite
ANPRM	03/29/2007	72 FR 14734
ANPRM; comment period extension	05/25/2007	72 FR 29287
NPRM	05/00/2009
Final Action	07/00/2011

Additional Information: SAN No. 5093; EPA publication information: ANPRM - http://www.epa.gov/fedrgstr/EPA-AIR/2007/March/Day-29/a5805.pdf; ; EPA Docket information: EPA-HQ-OAR-2006-0859
Regulatory Flexibility Analysis Required: No	Government Levels Affected: None
Small Entities Affected: No	Federalism: No
Included in the Regulatory Plan: Yes
Sectors Affected: 3364 Aerospace Product and Parts Manufacturing; 3313 Alumina and Aluminum Production and Processing; 32731 Cement Manufacturing; 3341 Computer and Peripheral Equipment Manufacturing; 32411 Petroleum Refineries; 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum); 22132 Sewage Treatment Facilities
RIN Data Printed in the FR: No
Agency Contact: Paula Hirtz Environmental Protection Agency Air and Radiation 109 T.W. Alexander Drive, Mail Code E143-01, Research Triangle Park, NC 27711 Phone:919 541-2618 Email: hirtz.paula@epa.gov Ken Hustvedt Environmental Protection Agency Air and Radiation E143-01, Research Triangle Park, NC 27711 Phone:919 541-5395 Fax:919 685-3200 Email: hustvedt.ken@epamail.epa.gov