Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 52.820: Identification of plan.

(a) Purpose and scope. This section sets forth the applicable SIP for Iowa under section 110 of the CAA, 42 U.S.C. 7401, and 40 CFR part 51 to meet NAAQS.
(b) Incorporation by reference. (1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to December 31, 2014, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as it exists on the date of the approval, and notice of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with EPA approval dates after December 31, 2014, will be incorporated by reference in the next update to the SIP compilation.
(2) EPA Region 7 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules/regulations which have been approved as part of the SIP as of December 31, 2014.
(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 7, Air Planning and Development Branch, 11201 Renner Boulevard, Lenexa, Kansas 66219; and the National Archives and Records Administration (NARA). If you wish to obtain material from the EPA Regional Office, please call (913) 551-7089. For information on the availability of this material at NARA, call (202) 741-6030, or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.
(c) EPA-approved regulations.
EPA-Approved Iowa Regulations
Iowa citation Title State effective date EPA approval date Explanation
Iowa Department of Natural Resources Environmental Protection Commission [567]
Chapter 21—Compliance, Excess Emissions, and Measurement of Emissions
567-21.1 Definitions and compliance requirements 6/19/2024 7/16/2026, 91 FR 43550
567-21.2 Variances 6/19/2024 7/16/2026, 91 FR 43550
567-21.4 Circumvention of rules 6/19/2024 7/16/2026, 91 FR 43550
567-21.5 Evidence used in establishing that a violation has occurred or is occurring 6/19/2024 7/16/2026, 91 FR 43550
567-21.6 Temporary electricity generation for disaster situations 6/19/2024 7/16/2026, 91 FR 43550
567-21.7 Excess emission reporting 6/19/2024 7/16/2026, 91 FR 43550
567-21.8 Maintenance and repair requirements 6/19/2024 7/16/2026, 91 FR 43550
567-21.10 Testing and sampling of new and existing equipment 6/19/2024 7/16/2026, 91 FR 43550
567-21.13 Methodology and qualified observer 6/19/2024 7/16/2026, 91 FR 43550
567-21.14 Prevention of air pollution emergency episodes—general 6/19/2024 7/16/2026, 91 FR 43550
567-21.15 Episode criteria 6/19/2024 7/16/2026, 91 FR 43550
567-21.16 Preplanned abatement strategies 6/19/2024 7/16/2026, 91 FR 43550
567-21.17 Actions taken during episodes 6/19/2024 7/16/2026, 91 FR 43550
Chapter 22—Controlling Air Pollution
567-22.1 Definitions and permit requirements for new or existing stationary sources 6/19/2024 7/16/2026, 91 FR 43550 The definitions for “anaerobic lagoon,” “odor,” “odorous substance,” “odorous substance source” are not SIP approved.
567-22.2 Processing permit applications 6/19/2024 7/16/2026, 91 FR 43550
567-22.3 Issuing permits 6/19/2024 7/16/2026, 91 FR 43550 Subrule 22.3(6) is not SIP approved.
567-22.4 Major stationary sources located in areas designated attainment or unclassified (PSD) 6/19/2024 7/16/2026, 91 FR 43550
567-22.5 Major stationary sources located in areas designated nonattainment 6/19/2024 7/16/2026, 91 FR 43550
567-22.8 Permit by rule 6/19/2024 7/16/2026, 91 FR 43550
567-22.9 Special requirements for visibility protection 6/19/2024 7/16/2026, 91 FR 43550
567-22.10 Permitting requirements for country grain elevators, country grain terminal elevators, grain terminal elevators and feed mill equipment 6/19/2024 7/16/2026, 91 FR 43550
567-22.11 Ambient air quality standards 6/19/2024 7/16/2026, 91 FR 43550
Chapter 23—Air Emission Standards
567-23.1 Emission standards 6/19/2024 7/16/2026, 91 FR 43550 Subrules 23.1(1)-(5) are not SIP approved
567-23.2 Open burning 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.2(3)j is not SIP approved. Variances from opening burning rule 23.2(2) are subject to EPA approval.
567-23.3 Specific contaminants 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.3(3)”(d)” is not SIP approved.
567-23.4 Specific processes 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.4(10) is not SIP approved.
Chapter 24-Operating Permits
567-24.105 Title V permit applications 6/19/2024 7/16/2026, 91 FR 43550 Only subparagraph 24.105(2)i(5) is SIP approved.
567-24.300 Operating permit by rule for small sources 6/19/2024 7/16/2026, 91 FR 43550
Chapter 31—Nonattainment New Source Review
567-31.1 Permit requirements relating to nonattainment area 6/19/2024 7/16/2026, 91 FR 43550
567-31.3 Nonattainment new source review (NNSR) requirements for areas designated nonattainment 6/19/2024 7/16/2026, 91 FR 43550
567-31.4 Preconstruction review permit program 6/19/2024 7/16/2026, 91 FR 43550
567-31.9 Actuals PALs 6/19/2024 7/16/2026, 91 FR 43550
567-31.10 Validity of rules 6/19/2024 7/16/2026, 91 FR 43550
Chapter 33—Construction Permit Requirements for Major Stationary Sources—Prevention of Significant Deterioration (PSD)
567-33.1 Purpose 6/19/2024 7/16/2026, 91 FR 43550
567-33.3 PSD construction permit requirements for major stationary sources 6/19/2024 7/16/2026, 91 FR 43550 Provisions of the 2010 PM2.5 PSD-Increments, SILs, and SMCs rule are excluded from 33.3(20) and are not SIP approved.
567-33.9 Plantwide applicability limitations 6/19/2024 7/16/2026, 91 FR 43550
567-33.10 Exceptions to adoption by reference 6/19/2024 7/16/2026, 91 FR 43550
Linn County
Chapter 10 Linn County Air Quality Ordinance, Chapter 10 5/14/2022 7/1/2024, 89 FR 54362 The following definitions are not SIP-approved in Chapter 10-55; Anaerobic lagoon, Biomass, Chemical processing plants (ethanol production facilities that produce ethanol by natural fermentation included in NAICS code 325193 or 312140 are not included in this definition); Greenhouse gases; The following sections are not SIP approved: 10-57(a), Title V Permits; 10-59(c), Fees Associated with PSD Applications; 10-61, Emissions From Fuel-Burning Equipment, (b)(2); 10-61, Emissions From Fuel-Burning Equipment, (c) Exemptions for Residential Heaters Burning Solid Fuels; 10-61, Emissions from Fuel-Burning Equipment, (d) Nuisance Conditions for Fuel Burning Equipment; 10-62, Emission Standards,(b) NSPS; 10-62(c), Emission Standards for HAPs; 10-62(d), Emission Standards for HAPs for Source Categories; 10-63, Open Burning, (a)(3)e.3. Variance from Rules; 10-64, Emission of Objectionable Odors; 10-68, Variances; 10-70, Testing and Sampling of New and Existing Equipment, (k) Continuous Emissions Monitoring from Acid Rain Program; and 10-77, Penalty.
Polk County
Chapter V Polk County Board of Health Rules and Regulations Air Pollution Chapter V 11/30/2018 9/21/2021, 86 FR 52413 Article I, Section 5-2, definition of “anaerobic lagoon” and “variance;” Article III, Incineration and Open Burning, Section 5-7(d) Variance Application; Article VI, Sections 5-16(n), (o) and (p); Article VIII; Article IX, Sections 5-27(3) and (4); Article X, Section 5-28, subsections (a) through (c), and Article X, Section 5-35(b)(5); Article XIII; Article XIV; and Article XVI, Section 5-75 B are not part of the SIP.
(d) EPA-approved State source-specific permits.
EPA-Approved Iowa Source-Specific Orders/Permits
Name of source Order/Permit No. State effective date EPA Approval date Explanation
(1) Archer-Daniels Midland Company 90-AQ-10 3/25/1991 11/1/1991, 56 FR 56158
(2) Interstate Power Company 89-AQ-04 2/21/1990 11/1/1991, 56 FR 56158
(3) [Reserved]
(4) [Reserved]
(5) [Reserved]
(6) [Reserved]
(7) [Reserved]
(8) [Reserved]
(9) [Reserved]
(10) [Reserved[
(11) IES Utilities, Inc 97-AQ-20 11/20/1998 3/11/1999, 64 FR 12087 SO2 Control Plan for Cedar Rapids.
(12) Archer-Daniels-Midland Corporation SO2 Emission Control Plan 9/14/1998 3/11/1999, 64 FR 12087 ADM Corn Processing SO2 Control Plan for Cedar Rapids.
(13) Linwood Mining and Minerals Corporation 98-AQ-07 3/13/1998 3/18/1999, 64 FR 13343 PM10 control plan for Buffalo.
(14) Lafarge Corporation 98-AQ-08 3/13/1998 3/18/1999, 64 FR 13343 PM10 control plan for Buffalo.
(15) Holnam, Inc A.C.O. 1999-AQ-31 9/2/1999 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.
(16) Holnam, Inc Consent Amendment to A.C.O. 1999-AQ-31 5/16/2001 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.
(17) Holnam, Inc Permits for 17-01-009, Project Nos. 99-511 and 00-468. 7/24/2001 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.
(18) Lehigh Portland Cement Company A.C.O. 1999-AQ-32 9/2/1999 11/6/2002, 67 FR 67563 For a list of the 41 permits issued for individual emission points see IDNR letters to Lehigh dated 7/24/01 and 2/18/02.
(19) Lehigh Portland Cement Company Permits for plant No. 17-01-005, Project Nos. 99-631 and 02-037 2/18/2002 11/6/2002, 67 FR 67563 For a list of the 41 permits issued for individual emission points see IDNR letters to Lehigh dated 7/24/01 and 2/18/02.
(20) Blackhawk Foundry and Machine Company A.C.O. 03-AQ-51 12/4/2003 6/10/2004, 69 FR 32454 Together with the permits listed below this order comprises the PM10 control strategy for Davenport, Iowa.
(21) Blackhawk Foundry and Machine Company Permit No. 02-A-116 (Cold Box Core Machine) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(22) Blackhawk Foundry and Machine Company Permit No. 02-A-290(Wheelabrator #2 and Casting Sorting) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(23) Blackhawk Foundry and Machine Company Permit No. 02-A-291 (Mold Sand Silo) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(24) Blackhawk Foundry and Machine Company Permit No. 02-A-292 (Bond Storage) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(25) Blackhawk Foundry and Machine Company Permit No. 02-A-293 (Induction Furnace and Aluminum Sweat Furnace) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(26) Blackhawk Foundry and Machine Company Permit No. 77-A-114-S1 (Wheelabrator #1 & Grinding) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(27) Blackhawk Foundry and Machine Company Permit No. 84-A-055-S1 (Cupola ladle, Pour deck ladle, Sand shakeout, Muller, Return sand #1, Sand cooler, Sand screen, and Return sand #2) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(28) Blackhawk Foundry and Machine Company Permit No. 72-A-060-S5 (Cupola) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.
(29) Grain Processing Corporation Administrative Consent Order No. 2014-AQ-A1 1/16/2017 12/1/2014, 79 FR 71025; amendment approved 6/28/2018, 83 FR 30348 The last sentence of Paragraph 5, Section III and Section VI are not approved by EPA as part of the SIP.
(30) Muscatine Power and Water Permit No. 74-A-175-S3 7/22/2013 12/1/2014, 79 FR 71025
(31) Muscatine Power and Water Permit No. 80-A-006-S3 7/22/2013 12/1/2014, 79 FR 71025
(32) Muscatine Power and Water Permit No. 80-A-007-S3 7/22/2013 12/1/2014, 79 FR 71025
(33) Muscatine Power and Water Permit No. 80-A-191-P2 7/22/2013 12/1/2014, 79 FR 71025
(34) Muscatine Power and Water Permit No. 80-A-193-S3 7/22/2013 12/1/2014, 79 FR 71025
(35) Muscatine Power and Water Permit No. 80-A-194-S3 7/22/2013 12/1/2014, 79 FR 71025
(36) Muscatine Power and Water Permit No. 80-A-197-S2 7/22/2013 12/1/2014, 79 FR 71025
(37) Muscatine Power and Water Permit No. 80-A-200-S1 7/22/2013 12/1/2014, 79 FR 71025
(38) Muscatine Power and Water Permit No. 80-A-201-S1 7/22/2013 12/1/2014, 79 FR 71025
(39) Muscatine Power and Water Permit No. 80-A-202-S2 7/22/2013 12/1/2014, 79 FR 71025
(40) Muscatine Power and Water Permit No. 93-A-283-S2 7/22/2013 12/1/2014, 79 FR 71025
(41) Muscatine Power and Water Permit No. 93-A-288-S3 7/22/2013 12/1/2014, 79 FR 71025
(42) Muscatine Power and Water Permit No. 93-A-289-S3 7/22/2013 12/1/2014, 79 FR 71025
(43) Muscatine Power and Water Permit No. 93-A-290-S3 7/22/2013 12/1/2014, 79 FR 71025
(44) Muscatine Power and Water Permit No. 93-A-373-P2 7/22/2013 12/1/2014, 79 FR 71025
(45) Muscatine Power and Water Permit No. 00-A-638-S3 7/22/2013 12/1/2014, 79 FR 71025
(46) Muscatine Power and Water Permit No. 00-A-639-S1 7/22/2013 12/1/2014, 79 FR 71025
(47) Muscatine Power and Water Permit No. 00-A-689-S1 7/22/2013 12/1/2014, 79 FR 71025
(48) Muscatine Power and Water Permit No. 00-A-684-S1 7/22/2013 12/1/2014, 79 FR 71025
(49) Muscatine Power and Water Permit No. 00-A-686-S1 7/22/2013 12/1/2014, 79 FR 71025
(50) Muscatine Power and Water Permit No. 00-A-687-S1 7/22/2013 12/1/2014, 79 FR 71025
(51) Muscatine Power and Water Permit No. 01-A-193-S2 7/22/2013 12/1/2014, 79 FR 71025
(52) Muscatine Power and Water Permit No. 01-A-218-S1 7/22/2013 12/1/2014, 79 FR 71025
(53) Muscatine Power and Water Permit No. 01-A-456-S1 7/22/2013 12/1/2014, 79 FR 71025
(54) Muscatine Power and Water Permit No. 01-A-617-S1 7/22/2013 12/1/2014, 79 FR 71025
(55) Muscatine Power and Water Permit No. 04-A-618-S1 7/22/2013 12/1/2014, 79 FR 71025
(56) Muscatine Power and Water Permit No. 04-A-619-S1 7/22/2013 12/1/2014, 79 FR 71025
(57) Muscatine Power and Water Permit No. 11-A-562-S1 7/22/2013 12/1/2014, 79 FR 71025
(58) Muscatine Power and Water Permit No. 13-A-139 7/23/2013 12/1/2014, 79 FR 71025
(59) Muscatine Power and Water Permit No. 13-A-140 7/23/2013 12/1/2014, 79 FR 71025
(60) Muscatine Power and Water Permit No. 13-A-141 7/23/2013 12/1/2014, 79 FR 71025
(61) Muscatine Power and Water Permit No. 13-A-142 7/22/2013 12/1/2014, 79 FR 71025
(62) Muscatine Power and Water Permit No. 13-A-143 7/22/2013 12/1/2014, 79 FR 71025
(63) Muscatine Power and Water Permit No. 13-A-146 7/22/2013 12/1/2014, 79 FR 71025
(64) Muscatine Power and Water Permit No. 13-A-147 7/22/2013 12/1/2014, 79 FR 71025
(65) Muscatine Power and Water Permit No. 13-A-148 7/22/2013 12/1/2014, 79 FR 71025
(66) Muscatine Power and Water Permit No. 13-A-150 7/22/2013 12/1/2014, 79 FR 71025
(67) Muscatine Power and Water Permit No. 13-A-151 7/22/2013 12/1/2014, 79 FR 71025
(68) Muscatine Power and Water Permit No. 13-A-152 7/22/2013 12/1/2014, 79 FR 71025
(69) Muscatine Power and Water Permit No. 13-A-153 7/22/2013 12/1/2014, 79 FR 71025
(70) Muscatine Power and Water Permit No. 13-A-154 7/22/2013 12/1/2014, 79 FR 71025
(71) Muscatine Power and Water Permit No. 13-A-155 7/22/2013 12/1/2014, 79 FR 71025
(72) Muscatine Power and Water Permit No. 13-A-157 7/22/2013 12/1/2014, 79 FR 71025
(73) Muscatine Power and Water Permit No. 13-A-158 7/22/2013 12/1/2014, 79 FR 71025
(74) Muscatine Power and Water Permit No. 13-A-159 7/22/2013 12/1/2014, 79 FR 71025
(75) Muscatine Power and Water Permit No. 13-A-161 7/22/2013 12/1/2014, 79 FR 71025
(76) Muscatine Power and Water Permit No. 80-A-196-S3 7/22/2013 12/1/2014, 79 FR 71025
(77) Muscatine Power and Water Permit No. 93-A-286-S4 7/22/2013 12/1/2014, 79 FR 71025
(78) Muscatine Power and Water Permit No. 01-A-457-S4 7/22/2013 12/1/2014, 79 FR 71025
(79) Muscatine Power and Water Permit No. 06-A-650-S2 7/22/2013 12/1/2014, 79 FR 71025
(80) Muscatine Power and Water Permit No. 13-A-160 7/22/2013 12/1/2014, 79 FR 71025
(81) Union Tank Car Company Permit No. 93-A-251-S5 4/8/2013 12/1/2014, 79 FR 71025
(82) Union Tank Car Company Permit No. 93-A-252-S5 4/8/2013 12/1/2014, 79 FR 71025
(83) Union Tank Car Company Permit No. 93-A-253-S5 4/8/2013 12/1/2014, 79 FR 71025
(84) Union Tank Car Company Permit No. 93-A-254-S3 4/8/2013 12/1/2014, 79 FR 71025
(85) Union Tank Car Company Permit No. 00-A-1086-S2 4/8/2013 12/1/2014, 79 FR 71025
(86) Union Tank Car Company Permit No. 00-A-1087-S2 4/8/2013 12/1/2014, 79 FR 71025
(87) Union Tank Car Company Permit No. 00-A-1088-S2 4/8/2013 12/1/2014, 79 FR 71025
(88) Union Tank Car Company Permit No. 93-A-255-S7 4/8/2013 12/1/2014, 79 FR 71025
(89) Union Tank Car Company Permit No. 96-A-629-S3 4/8/2013 12/1/2014, 79 FR 71025
(90) Union Tank Car Company Permit No. 96-A-630-S5 4/8/2013 12/1/2014, 79 FR 71025
(91) Union Tank Car Company Permit No. 96-A-631-S3 4/8/2013 12/1/2014, 79 FR 71025
(92) Union Tank Car Company Permit No. 96-A-636-S3 4/8/2013 12/1/2014, 79 FR 71025
(93) Union Tank Car Company Permit No. 00-A-529-S2 4/8/2013 12/1/2014, 79 FR 71025
(94) Union Tank Car Company Permit No. 00-A-530-S2 4/8/2013 12/1/2014, 79 FR 71025
(95) Union Tank Car Company Permit No. 00-A-531-S2 4/8/2013 12/1/2014, 79 FR 71025
(96) Union Tank Car Company Permit No. 00-A-532-S2 4/8/2013 12/1/2014, 79 FR 71025
(97) Union Tank Car Company Permit No. 00-A-533-S2 4/8/2013 12/1/2014, 79 FR 71025
(98) Union Tank Car Company Permit No. 93-A-256-S6 4/8/2013 12/1/2014, 79 FR 71025
(99) Union Tank Car Company Permit No. 96-A-632-S5 4/8/2013 12/1/2014, 79 FR 71025
(100) Union Tank Car Company Permit No. 96-A-633-S5 4/8/2013 12/1/2014, 79 FR 71025
(101) Union Tank Car Company Permit No. 96-A-634-S5 4/8/2013 12/1/2014, 79 FR 71025
(102) Union Tank Car Company Permit No. 96-A-635-S5 4/8/2013 12/1/2014, 79 FR 71025
(103) Union Tank Car Company Permit No. 00-A-1089-S2 4/8/2013 12/1/2014, 79 FR 71025
(104) Union Tank Car Company Permit No. 00-A-1090-S2 4/8/2013 12/1/2014, 79 FR 71025
(105) Union Tank Car Company Permit No. 00-A-1091-S2 4/8/2013 12/1/2014, 79 FR 71025
(106) Union Tank Car Company Permit No. 10-A-043-S2 4/8/2013 12/1/2014, 79 FR 71025
(107) Union Tank Car Company Permit No. 09-A-009-S2 4/8/2013 12/1/2014, 79 FR 71025
(108) Union Tank Car Company Permit No. 09-A-010-S2 4/8/2013 12/1/2014, 79 FR 71025
(109) Union Tank Car Company Permit No. 94-A-434-S2 4/8/2013 12/1/2014, 79 FR 71025
(110) Griffin Pipe Products Co., LLC Administrative Consent Order No. 2015-AQ-02 1/29/2015 2/26/2016, 81 FR 9770
(111) Alter Metal Recycling Permit No. 14-A-521-S1 6/30/2017 8/14/2025, 90 FR 39135 2008 Pb NAAQS Attainment Plan; condition 11 of the permit is not part of the SIP.
(112) Grain Processing Corporation 95-A-374-S4 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(113) Grain Processing Corporation 17-A-298 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(114) Grain Processing Corporation 17-A-299 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(115) Grain Processing Corporation 19-A-515-S1 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(116) Grain Processing Corporation 18-A-136 5/30/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(117) Grain Processing Corporation 72-A-199-S2 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(118) Grain Processing Corporation 17-A-112 5/2/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(119) [Reserved]
(120) Grain Processing Corporation 75-A-353-S2 7/6/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(121) [Reserved]
(122) Grain Processing Corporation 80-A-149-S6 2/21/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(123) Grain Processing Corporation 80-A-150-S6 2/21/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(124) Grain Processing Corporation 85-A-031-S5 5/19/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(125) Grain Processing Corporation 85-A-032-S5 5/19/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(126) Grain Processing Corporation 85-A-038-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(127) Grain Processing Corporation 85-A-135-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(128) Grain Processing Corporation 90-A-111-S1 7/6/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(129) Grain Processing Corporation 91-A-068-S3 11/4/2019 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(130) Grain Processing Corporation 93-A-110-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(131) Grain Processing Corporation 92-A-383-S3 10/11/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(132) Grain Processing Corporation 92-A-385-S2 10/11/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(133) Grain Processing Corporation 94-A-055-S3 5/13/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(134) Grain Processing Corporation 94-A-061-S3 5/13/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(135) Grain Processing Corporation 02-A-781-S3 2/8/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(136) Grain Processing Corporation 02-A-782-S3 2/8/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(137) Grain Processing Corporation 09-A-482-S2 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(138) Grain Processing Corporation 10-A-563-S2 7/25/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(139) Grain Processing Corporation 15-A-200-S1 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(140) Grain Processing Corporation 15-A-201-S1 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(141) [Reserved]
(142) Grain Processing Corporation 15-A-203 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(143) Grain Processing Corporation 15-A-204 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(144) Grain Processing Corporation 15-A-205 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(145) Grain Processing Corporation 15-A-206 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(146) Grain Processing Corporation 15-A-207 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(147) Grain Processing Corporation 15-A-208 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(148) [Reserved]
(149) Grain Processing Corporation 15-A-480 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(150) Grain Processing Corporation 15-A-481 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(151) Grain Processing Corporation 15-A-482 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(152) Grain Processing Corporation 15-A-483 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQ Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(153) Grain Processing Corporation 15-A-213-S2 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(154) Grain Processing Corporation 15-A-484 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(155) Grain Processing Corporation 15-A-485 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(156) Grain Processing Corporation 15-A-486-S1 11/4/2019 11/18/2025, 90 FR51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(157) Grain Processing Corporation 15-A-326-S1 3/4/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(158) Grain Processing Corporation 03-A-471-S3 5/30/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(159) [Reserved]
(160) Grain Processing Corporation 06-A-1261-S2 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(161) [Reserved]
(162) [Reserved]
(163) Grain Processing Corporation 15-A-199-S1 1/11/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(164) Muscatine Power and Water 13-A-152-S1 3/2/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(165) Muscatine Power and Water 74-A-175-S4 3/2/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(166) Muscatine Power and Water 95-A-373-P4 6/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(167) Muscatine Power and Water 80-A-191-P4 6/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(168) Monsanto 82-A-092-P12 11/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.
(169) Monsanto 88-A-001-S3 5/13/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(170) MidAmerican Energy Company—Louisa Station 05-A-031-P6 7/20/2023 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 11 of the permit is not part of the SIP.
(171) MidAmerican Energy Company—Walter Scott Jr. Energy Center 75-A-357-P9 7/20/2023 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 11 of the permit is not part of the SIP.
(172) MidAmerican Energy Company—Walter Scott, Jr. Energy Center 03-A-425-P4 12/5/2011 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 6 of the permit is not part of the SIP.
(e) The EPA approved nonregulatory provisions and quasi-regulatory measures.
EPA-Approved Iowa Nonregulatory Provisions
Name of nonregulatory SIP provision Applicable geographic or nonattainment area State submittal date EPA Approval date Explanation
(1) Air Pollution Control Implementation Plan Statewide 1/27/1972 5/31/1972, 37 FR 10842
(2) Request for a Two Year Extension to Meet the NAAQS Council Bluffs 1/27/1972 5/31/1972, 37 FR 10842 Correction notice published 3/2/1976.
(3) Revisions to Appendices D and G Statewide 2/2/1972 5/31/1972, 37 FR 10842 Correction notice published 3/2/1976.
(4) Source Surveillance and Record Maintenance Statements Statewide 4/14/1972 3/2/1976, 41 FR 8956 [FRL 484-4].
(5) Statement Regarding Public Availability of Emissions Data Statewide 5/2/1972 3/2/1976, 41 FR 8956 [FRL 484-4].
(7) Letter Describing the Certificates of Acceptance for Local Air Pollution Control Programs Linn County, Polk County 12/14/1972 10/1/1976, 41 FR 43406 [FRL 616-1].
(8) High Air Pollution Episode Contingency Plan Statewide 6/20/1973 10/1/1976, 41 FR 43406 [FRL 616-1].
(9) Summary of Public Hearing on Revised Rules Which Were Submitted on July 17, 1975 Statewide 9/3/1975 10/1/1976, 41 FR 43406 [FRL 616-1].
(10) Air Quality Modeling to Support Sulfur Dioxide Emission Standards Statewide 3/4/1977 6/1/1977, 42 FR 27892 [FRL 739-1].
(11) Nonattainment Plans Mason City, Davenport, Cedar Rapids, Des Moines 6/22/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].
(12) Information on VOC Sources to Support the Nonattainment Plan Linn County 10/8/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].
(13) Information and Commitments Pertaining to Legally Enforceable RACT Rules to Support the Nonattainment Plan Linn County 11/16/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].
(14) Lead Plan Statewide 8/19/1980 3/20/1981, 46 FR 17778 [A-7-FRL-1776-5].
(15) Letter to Support the Lead Plan Statewide 1/19/1981 3/20/1981, 46 FR 17778 [A-7-FRL-1776-5].
(16) Nonattainment Plans to Attain Secondary Standards Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 4/18/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].
(17) Information to Support the Particulate Matter Nonattainment Plan Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 9/16/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].
(18) Information to Support the Particulate Matter Nonattainment Plan Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 11/17/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].
(19) Schedule for Studying Nontraditional Sources of Particulate Matter and for Implementing the Results Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 6/26/1981 3/5/1982, 47 FR 9462 [A-7-FRL-2057-7].
(20) Air Monitoring Strategy Statewide 7/15/1981 4/12/1982, 47 FR 15583 [A-5-FRL-2076-5].
(21) Letter of Commitment to Revise Unapprovable Portions of Chapter 22 Statewide 5/14/1985 9/12/1985, 50 FR 37176 [EPA Action IA 1582; A-7-FRL-2895-9].
(22) Letter of Commitment to Submit Stack Height Regulations and to Implement the EPA's Regulations until the State's Rules Are Approved Statewide 4/22/1986 7/11/1986, 51 FR 25199 [EPA Action IA 2060; A-7-FRL-3046-8].
(23) Letter of Commitment to Implement the Stack Height Regulations in a Manner Consistent with the EPA's Stack Height Regulations with Respect to NSR/PSD Regulations Statewide 4/22/1987 6/26/1987, 52 FR 23981 [A-7-FRL-3216-5].
(24) PM10 SIP Statewide 10/28/1988 8/15/1989, 54 FR 33536 [FRL-3627-7].
(25) Letter Pertaining to NOX Rules and Analysis Which Certifies the Material Was Adopted by the State on October 17, 1990 Statewide 11/8/1990 2/13/1991, 56 FR 5757 [FRL-3903-5].
(26) SO2 Plan Clinton 3/13/1991 11/1/1991, 56 FR 56158 [IA-21-5182; FRL-4014-4].
(27) Letter Withdrawing Variance Provisions Polk County 10/23/1991 11/29/1991, 56 FR 60924 [FRL-IA-4-1-5308; FRL-4034-5] Correction notice published 1/26/1993.
(28) Letter Concerning Open Burning Exemptions Statewide 10/3/1991 1/22/1992, 57 FR 2472 [IA5-1-5380; FRL-4039-5].
(29) Compliance Sampling Manual Statewide 1/5/1993 5/12/1993, 58 FR 27939 [IA-8-1-5750; FRL-4618-6].
(30) Small Business Assistance Plan Statewide 12/22/1992 9/27/1993, 58 FR 50266 [IA-9-1-5859; FRL-4734-5].
(31) Voluntary Operating Permit Program Statewide 12/8/1994, 2/16/1996, 2/27/1996 4/30/1996, 61 FR 18958 [IA 003-1003, FRL-5455-4].
(32) SO2 Plan Muscatine 6/19/1996 5/21/1997 12/1/1997, 62 FR 63454 [IA 036-1036, FRL-5929-3].
(33) SO2 Maintenance Plan Muscatine 4/25/1997 3/19/1998, 63 FR 13343 [IA 040-1040(a), FRL-5980-2].
(34) SO2 Control Plan Cedar Rapids 9/11/1998 3/11/1999, 64 FR 12087 [IA 058-1058a; FRL-6308-5].
(35) PM10 Control Plan Buffalo, Iowa 10/1/1998 3/18/1999, 64 FR 13346 [IA 059-1059a; FRL-6310-7].
(36) CAA 110(a)(2)(D)(i) SIP—Interstate Transport Statewide 11/22/2006 3/8/2007, 72 FR 10380 [EPA-R07-OAR-2006-1015; FRL-8285-1].
(37) SO2 Maintenance Plan for the Second 10-year Period Muscatine 4/5/2007 8/1/2007; 72 FR 41900 [EPA-R07-OAR-2007-0477, FRL-8448-5].
(38) CAA 110(a)(1) and (2)-Ozone Infrastructure SIP Statewide 6/15/2007 3/4/2008; 73 FR 11554 [EPA-R07-OAR-2007-1180, FRL-8535-9].
(39) Regional Haze plan for the first implementation period Statewide 3/25/2008 6/26/2012, 77 FR 38007 [EPA-R07-OAR-2012-0153, FRL-9688-1] § 52.842(a); Limited Approval.
(40) Sections 110(a)(1) and (2) Infrastructure Requirements 2008 Lead NAAQS Statewide 11/4/2011 11/2/2015; Correction 3/25/2016, 81 FR 16094 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D), (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.
(41) Section 128 Declaration: Conflicts of Interest Provisions;
Constitution of the State of Iowa, Article 1, Section 2. This action addresses the following sections of the Constitution of the State of Iowa, Article 1, section 2;
Iowa Code: 4.4.(5), 7E.4, Chapter 68B Iowa Code : 4.4 (5), 7e.4, Chapter 68B;
Iowa Administrative Code: 351 IAC 6.11, 351 IAC 6.14(2), 351 IAC 6.19, 351 IAC 7.1-7.2, 567 IAC 1.11 (1-9) Statewide 5/11/2015 11/2/2015; Correction 3/25/2016, 81 FR 16094 Iowa Administrative Code: 351 IAC 6.11, 351 IAC 6.14(2), 351 IAC 6.19, 351 IAC 7.1-7.2, 567 IAC 1.11(1-9).
(42) Lead attainment SIP Portions of Pottawattamie County 1/30/2015 2/26/2016, 81 FR 9770 [EPA-R07-OAR-2015-0582; FRL-9942-79-Region 7].
(43) Sections 110(a)(1) and (2) Infrastructure Requirements 2008 Ozone NAAQS Statewide 1/17/2013 9/20/2016, 81 FR 64347 This action approves the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II)—prong 3 only, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(D)(i)(II)—prong 4 is disapproved. 110(a)(2)(I) is not applicable. [EPA-R07-OAR-2016-0407; FRL-9952-55-Region 7].
(44) State Implementation Plan (SIP) Revision for the Attainment and Maintenance of National Ambient Air Quality Standards for Regional Haze (2013 Five-Year Progress Report) Statewide 7/19/2013 8/15/2016, 81 FR 53924 [EPA-R07-OAR-2014-0365; FRL-9949-82-Region 7.
(45) Sections 110(a)(1) and (2) Infrastructure Requirements 1997 PM2.5 NAAQS Statewide 3/21/2008 8/16/2016, 81 FR 54502 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), prong 3, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.
(46) Sections 110(a)(1) and (2) Infrastructure Requirements 2006 PM2.5 NAAQS Statewide 7/23/2013 8/16/2016, 81 FR 54502 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), prong 3, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.
(47) Sections 110(a)(1) and (2) Infrastructure Requirements 2010 Sulfur Dioxide NAAQS Statewide 7/23/2013 3/22/2018, 83 FR 12486 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0267; FRL-9975-78-Region 7].
(48) Sections 110(a)(1) and (2) Infrastructure Requirements 2010 Nitrogen Dioxide NAAQS Statewide 7/23/2013, 3/1/2017 3/22/2018, 83 FR 12491 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(I) prongs 1 and 2, D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0208; FRL-9975-69—Region 7].
(49) Sections 110(a)(1) and (2) Infrastructure Requirements 2012 annual fine Particulate Matter NAAQS Statewide 12/15/2015 3/22/2018, 83 FR 12488 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0517; FRL-9975-68- Region 7].
(50) Lead Redesignation SIP and Maintenance Plan Portions of Pottawattamie County 9/18/2017 10/4/2018, 83 FR 50024 [EPA-R07-OAR-2018-0532; FRL-9984-64-Region 7].
(51) Section 110(a)(2) (D)(i)(I)—significant contribution to nonattainment (prong 1), and interfering with maintenance of the NAAQs (prong 2) (Interstate Transport) Infrastructure Requirements for the 2012 Annual Fine Particulate Matter (PM2.5) NAAQS Statewide 12/15/2015 9/6/2019, 84 FR 46887 This action approves the following CAA elements: 110(a)(1) and 110(a)(2 (D)(i)(I)—prongs 1 and 2 [EPA-R07-OAR-2019-0332; FRL-9998-89-Region 7].
(52) Sections 110 (a)(2) Infrastructure Prong 4 Requirements for the 2006 Fine Particulate Matter, 2012 Fine Particulate Matter, 2010 Nitrogen Dioxide, 2010 Sulfur Dioxide, 2008 Ozone, and 2015 Ozone NAAQS Statewide 1/17/2013; 7/28/2013; 7/29/2013; 7/29/2013; 12/22/2015; 11/30/2018; 5/14/2019 12/3/2019, 84 FR 66075 This action approves the following CAA elements: 110(a)(2)(D)(i)(II)—prong 4. [EPA-R07-OAR-2019-0468; FRL-10001-89-Region 7.].
(53) 2010 1-hour SO2 National Ambient Air Quality Standard Attainment Plan A portion of Muscatine County 5/26/2016 11/17/2020, 85 FR 73218 EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.
(54) Section 110(a)(2) Infrastructure Requirements for the 2015 O3 NAAQS Statewide 11/30/2018 8/23/2021, 86 FR 46984 [EPA-R07-OAR-2021-0378; FRL-8704-02-Region 7]. This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II)—prongs 3 and 4, (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(D)(i)(I)—prongs 1 and 2 will be addressed in a separate action. 110(a)(2)(I) is not applicable.
(55) Transport SIP for the 2015 Ozone Standard Statewide 11/30/2018 4/15/2022, 87 FR 22463 [EPA-R07-OAR-2021-0870; EPA-HQ-OAR-2021-0663; FRL-9468-02-R7]. This transport SIP shows that Iowa does not significantly contribute to ozone nonattainment or maintenance in any other state. This submittal is approved as meeting the requirements of Clean Air Act section 110(a)(2)(D)(i)(I).
(56) Iowa Regional Haze Plan for the Second Implementation Period Statewide 8/15/2023 8/5/2025, 90 FR 37389 [EPA-R07-OAR-2024-0313; FRL-12096-02-R7]
(57) 2010 1-hour primary SO2 NAAQS Maintenance Plan A portion of Muscatine County 11/17/2021 11/18/2025, 90 FR 51554 EPA-R07-OAR-2025-0818; FRL-12901-01-R7.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS
Subpart Q—Iowa

(a) Purpose and scope. This section sets forth the applicable SIP for Iowa under section 110 of the CAA, 42 U.S.C. 7401, and 40 CFR part 51 to meet NAAQS.

(b) Incorporation by reference. (1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to December 31, 2014, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as it exists on the date of the approval, and notice of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with EPA approval dates after December 31, 2014, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 7 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules/regulations which have been approved as part of the SIP as of December 31, 2014.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 7, Air Planning and Development Branch, 11201 Renner Boulevard, Lenexa, Kansas 66219; and the National Archives and Records Administration (NARA). If you wish to obtain material from the EPA Regional Office, please call (913) 551-7089. For information on the availability of this material at NARA, call (202) 741-6030, or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

EPA-Approved Iowa Regulations

Iowa citation Title State effective date EPA approval date Explanation

Iowa Department of Natural Resources Environmental Protection Commission [567]

Chapter 21—Compliance, Excess Emissions, and Measurement of Emissions

567-21.1 Definitions and compliance requirements 6/19/2024 7/16/2026, 91 FR 43550

567-21.2 Variances 6/19/2024 7/16/2026, 91 FR 43550

567-21.4 Circumvention of rules 6/19/2024 7/16/2026, 91 FR 43550

567-21.5 Evidence used in establishing that a violation has occurred or is occurring 6/19/2024 7/16/2026, 91 FR 43550

567-21.6 Temporary electricity generation for disaster situations 6/19/2024 7/16/2026, 91 FR 43550

567-21.7 Excess emission reporting 6/19/2024 7/16/2026, 91 FR 43550

567-21.8 Maintenance and repair requirements 6/19/2024 7/16/2026, 91 FR 43550

567-21.10 Testing and sampling of new and existing equipment 6/19/2024 7/16/2026, 91 FR 43550

567-21.13 Methodology and qualified observer 6/19/2024 7/16/2026, 91 FR 43550

567-21.14 Prevention of air pollution emergency episodes—general 6/19/2024 7/16/2026, 91 FR 43550

567-21.15 Episode criteria 6/19/2024 7/16/2026, 91 FR 43550

567-21.16 Preplanned abatement strategies 6/19/2024 7/16/2026, 91 FR 43550

567-21.17 Actions taken during episodes 6/19/2024 7/16/2026, 91 FR 43550

Chapter 22—Controlling Air Pollution

567-22.1 Definitions and permit requirements for new or existing stationary sources 6/19/2024 7/16/2026, 91 FR 43550 The definitions for “anaerobic lagoon,” “odor,” “odorous substance,” “odorous substance source” are not SIP approved.

567-22.2 Processing permit applications 6/19/2024 7/16/2026, 91 FR 43550

567-22.3 Issuing permits 6/19/2024 7/16/2026, 91 FR 43550 Subrule 22.3(6) is not SIP approved.

567-22.4 Major stationary sources located in areas designated attainment or unclassified (PSD) 6/19/2024 7/16/2026, 91 FR 43550

567-22.5 Major stationary sources located in areas designated nonattainment 6/19/2024 7/16/2026, 91 FR 43550

567-22.8 Permit by rule 6/19/2024 7/16/2026, 91 FR 43550

567-22.9 Special requirements for visibility protection 6/19/2024 7/16/2026, 91 FR 43550

567-22.10 Permitting requirements for country grain elevators, country grain terminal elevators, grain terminal elevators and feed mill equipment 6/19/2024 7/16/2026, 91 FR 43550

567-22.11 Ambient air quality standards 6/19/2024 7/16/2026, 91 FR 43550

Chapter 23—Air Emission Standards

567-23.1 Emission standards 6/19/2024 7/16/2026, 91 FR 43550 Subrules 23.1(1)-(5) are not SIP approved

567-23.2 Open burning 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.2(3)j is not SIP approved. Variances from opening burning rule 23.2(2) are subject to EPA approval.

567-23.3 Specific contaminants 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.3(3)”(d)” is not SIP approved.

567-23.4 Specific processes 6/19/2024 7/16/2026, 91 FR 43550 Subrule 23.4(10) is not SIP approved.

Chapter 24-Operating Permits

567-24.105 Title V permit applications 6/19/2024 7/16/2026, 91 FR 43550 Only subparagraph 24.105(2)i(5) is SIP approved.

567-24.300 Operating permit by rule for small sources 6/19/2024 7/16/2026, 91 FR 43550

Chapter 31—Nonattainment New Source Review

567-31.1 Permit requirements relating to nonattainment area 6/19/2024 7/16/2026, 91 FR 43550

567-31.3 Nonattainment new source review (NNSR) requirements for areas designated nonattainment 6/19/2024 7/16/2026, 91 FR 43550

567-31.4 Preconstruction review permit program 6/19/2024 7/16/2026, 91 FR 43550

567-31.9 Actuals PALs 6/19/2024 7/16/2026, 91 FR 43550

567-31.10 Validity of rules 6/19/2024 7/16/2026, 91 FR 43550

Chapter 33—Construction Permit Requirements for Major Stationary Sources—Prevention of Significant Deterioration (PSD)

567-33.1 Purpose 6/19/2024 7/16/2026, 91 FR 43550

567-33.3 PSD construction permit requirements for major stationary sources 6/19/2024 7/16/2026, 91 FR 43550 Provisions of the 2010 PM2.5 PSD-Increments, SILs, and SMCs rule are excluded from 33.3(20) and are not SIP approved.

567-33.9 Plantwide applicability limitations 6/19/2024 7/16/2026, 91 FR 43550

567-33.10 Exceptions to adoption by reference 6/19/2024 7/16/2026, 91 FR 43550

Linn County

Chapter 10 Linn County Air Quality Ordinance, Chapter 10 5/14/2022 7/1/2024, 89 FR 54362 The following definitions are not SIP-approved in Chapter 10-55; Anaerobic lagoon, Biomass, Chemical processing plants (ethanol production facilities that produce ethanol by natural fermentation included in NAICS code 325193 or 312140 are not included in this definition); Greenhouse gases; The following sections are not SIP approved: 10-57(a), Title V Permits; 10-59(c), Fees Associated with PSD Applications; 10-61, Emissions From Fuel-Burning Equipment, (b)(2); 10-61, Emissions From Fuel-Burning Equipment, (c) Exemptions for Residential Heaters Burning Solid Fuels; 10-61, Emissions from Fuel-Burning Equipment, (d) Nuisance Conditions for Fuel Burning Equipment; 10-62, Emission Standards,(b) NSPS; 10-62(c), Emission Standards for HAPs; 10-62(d), Emission Standards for HAPs for Source Categories; 10-63, Open Burning, (a)(3)e.3. Variance from Rules; 10-64, Emission of Objectionable Odors; 10-68, Variances; 10-70, Testing and Sampling of New and Existing Equipment, (k) Continuous Emissions Monitoring from Acid Rain Program; and 10-77, Penalty.

Polk County

Chapter V Polk County Board of Health Rules and Regulations Air Pollution Chapter V 11/30/2018 9/21/2021, 86 FR 52413 Article I, Section 5-2, definition of “anaerobic lagoon” and “variance;” Article III, Incineration and Open Burning, Section 5-7(d) Variance Application; Article VI, Sections 5-16(n), (o) and (p); Article VIII; Article IX, Sections 5-27(3) and (4); Article X, Section 5-28, subsections (a) through (c), and Article X, Section 5-35(b)(5); Article XIII; Article XIV; and Article XVI, Section 5-75 B are not part of the SIP.

(d) EPA-approved State source-specific permits.

EPA-Approved Iowa Source-Specific Orders/Permits

Name of source Order/Permit No. State effective date EPA Approval date Explanation

(1) Archer-Daniels Midland Company 90-AQ-10 3/25/1991 11/1/1991, 56 FR 56158

(2) Interstate Power Company 89-AQ-04 2/21/1990 11/1/1991, 56 FR 56158

(3) [Reserved]

(4) [Reserved]

(5) [Reserved]

(6) [Reserved]

(7) [Reserved]

(8) [Reserved]

(9) [Reserved]

(10) [Reserved[

(11) IES Utilities, Inc 97-AQ-20 11/20/1998 3/11/1999, 64 FR 12087 SO2 Control Plan for Cedar Rapids.

(12) Archer-Daniels-Midland Corporation SO2 Emission Control Plan 9/14/1998 3/11/1999, 64 FR 12087 ADM Corn Processing SO2 Control Plan for Cedar Rapids.

(13) Linwood Mining and Minerals Corporation 98-AQ-07 3/13/1998 3/18/1999, 64 FR 13343 PM10 control plan for Buffalo.

(14) Lafarge Corporation 98-AQ-08 3/13/1998 3/18/1999, 64 FR 13343 PM10 control plan for Buffalo.

(15) Holnam, Inc A.C.O. 1999-AQ-31 9/2/1999 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.

(16) Holnam, Inc Consent Amendment to A.C.O. 1999-AQ-31 5/16/2001 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.

(17) Holnam, Inc Permits for 17-01-009, Project Nos. 99-511 and 00-468. 7/24/2001 11/6/2002, 67 FR 67563 For a list of the 47 permits issued for individual emission points see IDNR letters to Holnam, Inc., dated 7/24/01.

(18) Lehigh Portland Cement Company A.C.O. 1999-AQ-32 9/2/1999 11/6/2002, 67 FR 67563 For a list of the 41 permits issued for individual emission points see IDNR letters to Lehigh dated 7/24/01 and 2/18/02.

(19) Lehigh Portland Cement Company Permits for plant No. 17-01-005, Project Nos. 99-631 and 02-037 2/18/2002 11/6/2002, 67 FR 67563 For a list of the 41 permits issued for individual emission points see IDNR letters to Lehigh dated 7/24/01 and 2/18/02.

(20) Blackhawk Foundry and Machine Company A.C.O. 03-AQ-51 12/4/2003 6/10/2004, 69 FR 32454 Together with the permits listed below this order comprises the PM10 control strategy for Davenport, Iowa.

(21) Blackhawk Foundry and Machine Company Permit No. 02-A-116 (Cold Box Core Machine) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(22) Blackhawk Foundry and Machine Company Permit No. 02-A-290(Wheelabrator #2 and Casting Sorting) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(23) Blackhawk Foundry and Machine Company Permit No. 02-A-291 (Mold Sand Silo) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(24) Blackhawk Foundry and Machine Company Permit No. 02-A-292 (Bond Storage) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(25) Blackhawk Foundry and Machine Company Permit No. 02-A-293 (Induction Furnace and Aluminum Sweat Furnace) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(26) Blackhawk Foundry and Machine Company Permit No. 77-A-114-S1 (Wheelabrator #1 & Grinding) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(27) Blackhawk Foundry and Machine Company Permit No. 84-A-055-S1 (Cupola ladle, Pour deck ladle, Sand shakeout, Muller, Return sand #1, Sand cooler, Sand screen, and Return sand #2) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(28) Blackhawk Foundry and Machine Company Permit No. 72-A-060-S5 (Cupola) 8/19/2002 6/10/2004, 69 FR 32454 Provisions of the permit that relate to pollutants other than PM10 are not approved by EPA as part of this SIP.

(29) Grain Processing Corporation Administrative Consent Order No. 2014-AQ-A1 1/16/2017 12/1/2014, 79 FR 71025; amendment approved 6/28/2018, 83 FR 30348 The last sentence of Paragraph 5, Section III and Section VI are not approved by EPA as part of the SIP.

(30) Muscatine Power and Water Permit No. 74-A-175-S3 7/22/2013 12/1/2014, 79 FR 71025

(31) Muscatine Power and Water Permit No. 80-A-006-S3 7/22/2013 12/1/2014, 79 FR 71025

(32) Muscatine Power and Water Permit No. 80-A-007-S3 7/22/2013 12/1/2014, 79 FR 71025

(33) Muscatine Power and Water Permit No. 80-A-191-P2 7/22/2013 12/1/2014, 79 FR 71025

(34) Muscatine Power and Water Permit No. 80-A-193-S3 7/22/2013 12/1/2014, 79 FR 71025

(35) Muscatine Power and Water Permit No. 80-A-194-S3 7/22/2013 12/1/2014, 79 FR 71025

(36) Muscatine Power and Water Permit No. 80-A-197-S2 7/22/2013 12/1/2014, 79 FR 71025

(37) Muscatine Power and Water Permit No. 80-A-200-S1 7/22/2013 12/1/2014, 79 FR 71025

(38) Muscatine Power and Water Permit No. 80-A-201-S1 7/22/2013 12/1/2014, 79 FR 71025

(39) Muscatine Power and Water Permit No. 80-A-202-S2 7/22/2013 12/1/2014, 79 FR 71025

(40) Muscatine Power and Water Permit No. 93-A-283-S2 7/22/2013 12/1/2014, 79 FR 71025

(41) Muscatine Power and Water Permit No. 93-A-288-S3 7/22/2013 12/1/2014, 79 FR 71025

(42) Muscatine Power and Water Permit No. 93-A-289-S3 7/22/2013 12/1/2014, 79 FR 71025

(43) Muscatine Power and Water Permit No. 93-A-290-S3 7/22/2013 12/1/2014, 79 FR 71025

(44) Muscatine Power and Water Permit No. 93-A-373-P2 7/22/2013 12/1/2014, 79 FR 71025

(45) Muscatine Power and Water Permit No. 00-A-638-S3 7/22/2013 12/1/2014, 79 FR 71025

(46) Muscatine Power and Water Permit No. 00-A-639-S1 7/22/2013 12/1/2014, 79 FR 71025

(47) Muscatine Power and Water Permit No. 00-A-689-S1 7/22/2013 12/1/2014, 79 FR 71025

(48) Muscatine Power and Water Permit No. 00-A-684-S1 7/22/2013 12/1/2014, 79 FR 71025

(49) Muscatine Power and Water Permit No. 00-A-686-S1 7/22/2013 12/1/2014, 79 FR 71025

(50) Muscatine Power and Water Permit No. 00-A-687-S1 7/22/2013 12/1/2014, 79 FR 71025

(51) Muscatine Power and Water Permit No. 01-A-193-S2 7/22/2013 12/1/2014, 79 FR 71025

(52) Muscatine Power and Water Permit No. 01-A-218-S1 7/22/2013 12/1/2014, 79 FR 71025

(53) Muscatine Power and Water Permit No. 01-A-456-S1 7/22/2013 12/1/2014, 79 FR 71025

(54) Muscatine Power and Water Permit No. 01-A-617-S1 7/22/2013 12/1/2014, 79 FR 71025

(55) Muscatine Power and Water Permit No. 04-A-618-S1 7/22/2013 12/1/2014, 79 FR 71025

(56) Muscatine Power and Water Permit No. 04-A-619-S1 7/22/2013 12/1/2014, 79 FR 71025

(57) Muscatine Power and Water Permit No. 11-A-562-S1 7/22/2013 12/1/2014, 79 FR 71025

(58) Muscatine Power and Water Permit No. 13-A-139 7/23/2013 12/1/2014, 79 FR 71025

(59) Muscatine Power and Water Permit No. 13-A-140 7/23/2013 12/1/2014, 79 FR 71025

(60) Muscatine Power and Water Permit No. 13-A-141 7/23/2013 12/1/2014, 79 FR 71025

(61) Muscatine Power and Water Permit No. 13-A-142 7/22/2013 12/1/2014, 79 FR 71025

(62) Muscatine Power and Water Permit No. 13-A-143 7/22/2013 12/1/2014, 79 FR 71025

(63) Muscatine Power and Water Permit No. 13-A-146 7/22/2013 12/1/2014, 79 FR 71025

(64) Muscatine Power and Water Permit No. 13-A-147 7/22/2013 12/1/2014, 79 FR 71025

(65) Muscatine Power and Water Permit No. 13-A-148 7/22/2013 12/1/2014, 79 FR 71025

(66) Muscatine Power and Water Permit No. 13-A-150 7/22/2013 12/1/2014, 79 FR 71025

(67) Muscatine Power and Water Permit No. 13-A-151 7/22/2013 12/1/2014, 79 FR 71025

(68) Muscatine Power and Water Permit No. 13-A-152 7/22/2013 12/1/2014, 79 FR 71025

(69) Muscatine Power and Water Permit No. 13-A-153 7/22/2013 12/1/2014, 79 FR 71025

(70) Muscatine Power and Water Permit No. 13-A-154 7/22/2013 12/1/2014, 79 FR 71025

(71) Muscatine Power and Water Permit No. 13-A-155 7/22/2013 12/1/2014, 79 FR 71025

(72) Muscatine Power and Water Permit No. 13-A-157 7/22/2013 12/1/2014, 79 FR 71025

(73) Muscatine Power and Water Permit No. 13-A-158 7/22/2013 12/1/2014, 79 FR 71025

(74) Muscatine Power and Water Permit No. 13-A-159 7/22/2013 12/1/2014, 79 FR 71025

(75) Muscatine Power and Water Permit No. 13-A-161 7/22/2013 12/1/2014, 79 FR 71025

(76) Muscatine Power and Water Permit No. 80-A-196-S3 7/22/2013 12/1/2014, 79 FR 71025

(77) Muscatine Power and Water Permit No. 93-A-286-S4 7/22/2013 12/1/2014, 79 FR 71025

(78) Muscatine Power and Water Permit No. 01-A-457-S4 7/22/2013 12/1/2014, 79 FR 71025

(79) Muscatine Power and Water Permit No. 06-A-650-S2 7/22/2013 12/1/2014, 79 FR 71025

(80) Muscatine Power and Water Permit No. 13-A-160 7/22/2013 12/1/2014, 79 FR 71025

(81) Union Tank Car Company Permit No. 93-A-251-S5 4/8/2013 12/1/2014, 79 FR 71025

(82) Union Tank Car Company Permit No. 93-A-252-S5 4/8/2013 12/1/2014, 79 FR 71025

(83) Union Tank Car Company Permit No. 93-A-253-S5 4/8/2013 12/1/2014, 79 FR 71025

(84) Union Tank Car Company Permit No. 93-A-254-S3 4/8/2013 12/1/2014, 79 FR 71025

(85) Union Tank Car Company Permit No. 00-A-1086-S2 4/8/2013 12/1/2014, 79 FR 71025

(86) Union Tank Car Company Permit No. 00-A-1087-S2 4/8/2013 12/1/2014, 79 FR 71025

(87) Union Tank Car Company Permit No. 00-A-1088-S2 4/8/2013 12/1/2014, 79 FR 71025

(88) Union Tank Car Company Permit No. 93-A-255-S7 4/8/2013 12/1/2014, 79 FR 71025

(89) Union Tank Car Company Permit No. 96-A-629-S3 4/8/2013 12/1/2014, 79 FR 71025

(90) Union Tank Car Company Permit No. 96-A-630-S5 4/8/2013 12/1/2014, 79 FR 71025

(91) Union Tank Car Company Permit No. 96-A-631-S3 4/8/2013 12/1/2014, 79 FR 71025

(92) Union Tank Car Company Permit No. 96-A-636-S3 4/8/2013 12/1/2014, 79 FR 71025

(93) Union Tank Car Company Permit No. 00-A-529-S2 4/8/2013 12/1/2014, 79 FR 71025

(94) Union Tank Car Company Permit No. 00-A-530-S2 4/8/2013 12/1/2014, 79 FR 71025

(95) Union Tank Car Company Permit No. 00-A-531-S2 4/8/2013 12/1/2014, 79 FR 71025

(96) Union Tank Car Company Permit No. 00-A-532-S2 4/8/2013 12/1/2014, 79 FR 71025

(97) Union Tank Car Company Permit No. 00-A-533-S2 4/8/2013 12/1/2014, 79 FR 71025

(98) Union Tank Car Company Permit No. 93-A-256-S6 4/8/2013 12/1/2014, 79 FR 71025

(99) Union Tank Car Company Permit No. 96-A-632-S5 4/8/2013 12/1/2014, 79 FR 71025

(100) Union Tank Car Company Permit No. 96-A-633-S5 4/8/2013 12/1/2014, 79 FR 71025

(101) Union Tank Car Company Permit No. 96-A-634-S5 4/8/2013 12/1/2014, 79 FR 71025

(102) Union Tank Car Company Permit No. 96-A-635-S5 4/8/2013 12/1/2014, 79 FR 71025

(103) Union Tank Car Company Permit No. 00-A-1089-S2 4/8/2013 12/1/2014, 79 FR 71025

(104) Union Tank Car Company Permit No. 00-A-1090-S2 4/8/2013 12/1/2014, 79 FR 71025

(105) Union Tank Car Company Permit No. 00-A-1091-S2 4/8/2013 12/1/2014, 79 FR 71025

(106) Union Tank Car Company Permit No. 10-A-043-S2 4/8/2013 12/1/2014, 79 FR 71025

(107) Union Tank Car Company Permit No. 09-A-009-S2 4/8/2013 12/1/2014, 79 FR 71025

(108) Union Tank Car Company Permit No. 09-A-010-S2 4/8/2013 12/1/2014, 79 FR 71025

(109) Union Tank Car Company Permit No. 94-A-434-S2 4/8/2013 12/1/2014, 79 FR 71025

(110) Griffin Pipe Products Co., LLC Administrative Consent Order No. 2015-AQ-02 1/29/2015 2/26/2016, 81 FR 9770

(111) Alter Metal Recycling Permit No. 14-A-521-S1 6/30/2017 8/14/2025, 90 FR 39135 2008 Pb NAAQS Attainment Plan; condition 11 of the permit is not part of the SIP.

(112) Grain Processing Corporation 95-A-374-S4 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(113) Grain Processing Corporation 17-A-298 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(114) Grain Processing Corporation 17-A-299 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(115) Grain Processing Corporation 19-A-515-S1 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(116) Grain Processing Corporation 18-A-136 5/30/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(117) Grain Processing Corporation 72-A-199-S2 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(118) Grain Processing Corporation 17-A-112 5/2/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(119) [Reserved]

(120) Grain Processing Corporation 75-A-353-S2 7/6/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(121) [Reserved]

(122) Grain Processing Corporation 80-A-149-S6 2/21/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(123) Grain Processing Corporation 80-A-150-S6 2/21/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(124) Grain Processing Corporation 85-A-031-S5 5/19/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(125) Grain Processing Corporation 85-A-032-S5 5/19/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(126) Grain Processing Corporation 85-A-038-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(127) Grain Processing Corporation 85-A-135-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(128) Grain Processing Corporation 90-A-111-S1 7/6/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(129) Grain Processing Corporation 91-A-068-S3 11/4/2019 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(130) Grain Processing Corporation 93-A-110-P1 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(131) Grain Processing Corporation 92-A-383-S3 10/11/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(132) Grain Processing Corporation 92-A-385-S2 10/11/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(133) Grain Processing Corporation 94-A-055-S3 5/13/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(134) Grain Processing Corporation 94-A-061-S3 5/13/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(135) Grain Processing Corporation 02-A-781-S3 2/8/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(136) Grain Processing Corporation 02-A-782-S3 2/8/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(137) Grain Processing Corporation 09-A-482-S2 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(138) Grain Processing Corporation 10-A-563-S2 7/25/2017 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(139) Grain Processing Corporation 15-A-200-S1 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(140) Grain Processing Corporation 15-A-201-S1 4/12/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(141) [Reserved]

(142) Grain Processing Corporation 15-A-203 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(143) Grain Processing Corporation 15-A-204 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(144) Grain Processing Corporation 15-A-205 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(145) Grain Processing Corporation 15-A-206 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(146) Grain Processing Corporation 15-A-207 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(147) Grain Processing Corporation 15-A-208 12/10/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(148) [Reserved]

(149) Grain Processing Corporation 15-A-480 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(150) Grain Processing Corporation 15-A-481 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(151) Grain Processing Corporation 15-A-482 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(152) Grain Processing Corporation 15-A-483 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQ Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(153) Grain Processing Corporation 15-A-213-S2 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(154) Grain Processing Corporation 15-A-484 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(155) Grain Processing Corporation 15-A-485 2/15/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(156) Grain Processing Corporation 15-A-486-S1 11/4/2019 11/18/2025, 90 FR51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(157) Grain Processing Corporation 15-A-326-S1 3/4/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(158) Grain Processing Corporation 03-A-471-S3 5/30/2018 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(159) [Reserved]

(160) Grain Processing Corporation 06-A-1261-S2 12/22/2020 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(161) [Reserved]

(162) [Reserved]

(163) Grain Processing Corporation 15-A-199-S1 1/11/2021 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(164) Muscatine Power and Water 13-A-152-S1 3/2/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(165) Muscatine Power and Water 74-A-175-S4 3/2/2016 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(166) Muscatine Power and Water 95-A-373-P4 6/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(167) Muscatine Power and Water 80-A-191-P4 6/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(168) Monsanto 82-A-092-P12 11/1/2016 11/18/2025, 90 FR 51554 2010 1-hour SO2 NAAQS Attainment Plan; EPA-R07-OAR-2025-0818; FRL-12901-02-R7.

(169) Monsanto 88-A-001-S3 5/13/2015 11/17/2020, 85 FR 73218 2010 1-hour SO2 NAAQS Attainment Plan; Condition 6 of the permit is not part of the SIP; EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(170) MidAmerican Energy Company—Louisa Station 05-A-031-P6 7/20/2023 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 11 of the permit is not part of the SIP.

(171) MidAmerican Energy Company—Walter Scott Jr. Energy Center 75-A-357-P9 7/20/2023 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 11 of the permit is not part of the SIP.

(172) MidAmerican Energy Company—Walter Scott, Jr. Energy Center 03-A-425-P4 12/5/2011 8/5/2025, 90 FR 37389 Regional Haze Plan for the second implementation period; condition 6 of the permit is not part of the SIP.

(e) The EPA approved nonregulatory provisions and quasi-regulatory measures.

EPA-Approved Iowa Nonregulatory Provisions

Name of nonregulatory SIP provision Applicable geographic or nonattainment area State submittal date EPA Approval date Explanation

(1) Air Pollution Control Implementation Plan Statewide 1/27/1972 5/31/1972, 37 FR 10842

(2) Request for a Two Year Extension to Meet the NAAQS Council Bluffs 1/27/1972 5/31/1972, 37 FR 10842 Correction notice published 3/2/1976.

(3) Revisions to Appendices D and G Statewide 2/2/1972 5/31/1972, 37 FR 10842 Correction notice published 3/2/1976.

(4) Source Surveillance and Record Maintenance Statements Statewide 4/14/1972 3/2/1976, 41 FR 8956 [FRL 484-4].

(5) Statement Regarding Public Availability of Emissions Data Statewide 5/2/1972 3/2/1976, 41 FR 8956 [FRL 484-4].

(7) Letter Describing the Certificates of Acceptance for Local Air Pollution Control Programs Linn County, Polk County 12/14/1972 10/1/1976, 41 FR 43406 [FRL 616-1].

(8) High Air Pollution Episode Contingency Plan Statewide 6/20/1973 10/1/1976, 41 FR 43406 [FRL 616-1].

(9) Summary of Public Hearing on Revised Rules Which Were Submitted on July 17, 1975 Statewide 9/3/1975 10/1/1976, 41 FR 43406 [FRL 616-1].

(10) Air Quality Modeling to Support Sulfur Dioxide Emission Standards Statewide 3/4/1977 6/1/1977, 42 FR 27892 [FRL 739-1].

(11) Nonattainment Plans Mason City, Davenport, Cedar Rapids, Des Moines 6/22/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].

(12) Information on VOC Sources to Support the Nonattainment Plan Linn County 10/8/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].

(13) Information and Commitments Pertaining to Legally Enforceable RACT Rules to Support the Nonattainment Plan Linn County 11/16/1979 3/6/1980, 45 FR 14561 [FRL 1427-5].

(14) Lead Plan Statewide 8/19/1980 3/20/1981, 46 FR 17778 [A-7-FRL-1776-5].

(15) Letter to Support the Lead Plan Statewide 1/19/1981 3/20/1981, 46 FR 17778 [A-7-FRL-1776-5].

(16) Nonattainment Plans to Attain Secondary Standards Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 4/18/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].

(17) Information to Support the Particulate Matter Nonattainment Plan Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 9/16/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].

(18) Information to Support the Particulate Matter Nonattainment Plan Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 11/17/1980 4/17/1981, 46 FR 22368 [A-7-FRL 1792-2].

(19) Schedule for Studying Nontraditional Sources of Particulate Matter and for Implementing the Results Mason City, Cedar Rapids, Des Moines, Davenport, Keokuk, Council Bluffs, Fort Dodge, Sioux City, Clinton, Marshalltown, Muscatine, Waterloo 6/26/1981 3/5/1982, 47 FR 9462 [A-7-FRL-2057-7].

(20) Air Monitoring Strategy Statewide 7/15/1981 4/12/1982, 47 FR 15583 [A-5-FRL-2076-5].

(21) Letter of Commitment to Revise Unapprovable Portions of Chapter 22 Statewide 5/14/1985 9/12/1985, 50 FR 37176 [EPA Action IA 1582; A-7-FRL-2895-9].

(22) Letter of Commitment to Submit Stack Height Regulations and to Implement the EPA's Regulations until the State's Rules Are Approved Statewide 4/22/1986 7/11/1986, 51 FR 25199 [EPA Action IA 2060; A-7-FRL-3046-8].

(23) Letter of Commitment to Implement the Stack Height Regulations in a Manner Consistent with the EPA's Stack Height Regulations with Respect to NSR/PSD Regulations Statewide 4/22/1987 6/26/1987, 52 FR 23981 [A-7-FRL-3216-5].

(24) PM10 SIP Statewide 10/28/1988 8/15/1989, 54 FR 33536 [FRL-3627-7].

(25) Letter Pertaining to NOX Rules and Analysis Which Certifies the Material Was Adopted by the State on October 17, 1990 Statewide 11/8/1990 2/13/1991, 56 FR 5757 [FRL-3903-5].

(26) SO2 Plan Clinton 3/13/1991 11/1/1991, 56 FR 56158 [IA-21-5182; FRL-4014-4].

(27) Letter Withdrawing Variance Provisions Polk County 10/23/1991 11/29/1991, 56 FR 60924 [FRL-IA-4-1-5308; FRL-4034-5] Correction notice published 1/26/1993.

(28) Letter Concerning Open Burning Exemptions Statewide 10/3/1991 1/22/1992, 57 FR 2472 [IA5-1-5380; FRL-4039-5].

(29) Compliance Sampling Manual Statewide 1/5/1993 5/12/1993, 58 FR 27939 [IA-8-1-5750; FRL-4618-6].

(30) Small Business Assistance Plan Statewide 12/22/1992 9/27/1993, 58 FR 50266 [IA-9-1-5859; FRL-4734-5].

(31) Voluntary Operating Permit Program Statewide 12/8/1994, 2/16/1996, 2/27/1996 4/30/1996, 61 FR 18958 [IA 003-1003, FRL-5455-4].

(32) SO2 Plan Muscatine 6/19/1996 5/21/1997 12/1/1997, 62 FR 63454 [IA 036-1036, FRL-5929-3].

(33) SO2 Maintenance Plan Muscatine 4/25/1997 3/19/1998, 63 FR 13343 [IA 040-1040(a), FRL-5980-2].

(34) SO2 Control Plan Cedar Rapids 9/11/1998 3/11/1999, 64 FR 12087 [IA 058-1058a; FRL-6308-5].

(35) PM10 Control Plan Buffalo, Iowa 10/1/1998 3/18/1999, 64 FR 13346 [IA 059-1059a; FRL-6310-7].

(36) CAA 110(a)(2)(D)(i) SIP—Interstate Transport Statewide 11/22/2006 3/8/2007, 72 FR 10380 [EPA-R07-OAR-2006-1015; FRL-8285-1].

(37) SO2 Maintenance Plan for the Second 10-year Period Muscatine 4/5/2007 8/1/2007; 72 FR 41900 [EPA-R07-OAR-2007-0477, FRL-8448-5].

(38) CAA 110(a)(1) and (2)-Ozone Infrastructure SIP Statewide 6/15/2007 3/4/2008; 73 FR 11554 [EPA-R07-OAR-2007-1180, FRL-8535-9].

(39) Regional Haze plan for the first implementation period Statewide 3/25/2008 6/26/2012, 77 FR 38007 [EPA-R07-OAR-2012-0153, FRL-9688-1] § 52.842(a); Limited Approval.

(40) Sections 110(a)(1) and (2) Infrastructure Requirements 2008 Lead NAAQS Statewide 11/4/2011 11/2/2015; Correction 3/25/2016, 81 FR 16094 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D), (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.

(41) Section 128 Declaration: Conflicts of Interest Provisions;

Constitution of the State of Iowa, Article 1, Section 2. This action addresses the following sections of the Constitution of the State of Iowa, Article 1, section 2;

Iowa Code: 4.4.(5), 7E.4, Chapter 68B Iowa Code : 4.4 (5), 7e.4, Chapter 68B;

Iowa Administrative Code: 351 IAC 6.11, 351 IAC 6.14(2), 351 IAC 6.19, 351 IAC 7.1-7.2, 567 IAC 1.11 (1-9) Statewide 5/11/2015 11/2/2015; Correction 3/25/2016, 81 FR 16094 Iowa Administrative Code: 351 IAC 6.11, 351 IAC 6.14(2), 351 IAC 6.19, 351 IAC 7.1-7.2, 567 IAC 1.11(1-9).

(42) Lead attainment SIP Portions of Pottawattamie County 1/30/2015 2/26/2016, 81 FR 9770 [EPA-R07-OAR-2015-0582; FRL-9942-79-Region 7].

(43) Sections 110(a)(1) and (2) Infrastructure Requirements 2008 Ozone NAAQS Statewide 1/17/2013 9/20/2016, 81 FR 64347 This action approves the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II)—prong 3 only, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(D)(i)(II)—prong 4 is disapproved. 110(a)(2)(I) is not applicable. [EPA-R07-OAR-2016-0407; FRL-9952-55-Region 7].

(44) State Implementation Plan (SIP) Revision for the Attainment and Maintenance of National Ambient Air Quality Standards for Regional Haze (2013 Five-Year Progress Report) Statewide 7/19/2013 8/15/2016, 81 FR 53924 [EPA-R07-OAR-2014-0365; FRL-9949-82-Region 7.

(45) Sections 110(a)(1) and (2) Infrastructure Requirements 1997 PM2.5 NAAQS Statewide 3/21/2008 8/16/2016, 81 FR 54502 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), prong 3, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.

(46) Sections 110(a)(1) and (2) Infrastructure Requirements 2006 PM2.5 NAAQS Statewide 7/23/2013 8/16/2016, 81 FR 54502 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II), prong 3, (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(I) is not applicable.

(47) Sections 110(a)(1) and (2) Infrastructure Requirements 2010 Sulfur Dioxide NAAQS Statewide 7/23/2013 3/22/2018, 83 FR 12486 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0267; FRL-9975-78-Region 7].

(48) Sections 110(a)(1) and (2) Infrastructure Requirements 2010 Nitrogen Dioxide NAAQS Statewide 7/23/2013, 3/1/2017 3/22/2018, 83 FR 12491 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(I) prongs 1 and 2, D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0208; FRL-9975-69—Region 7].

(49) Sections 110(a)(1) and (2) Infrastructure Requirements 2012 annual fine Particulate Matter NAAQS Statewide 12/15/2015 3/22/2018, 83 FR 12488 This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), D(i)(II) prong 3 only, D(ii), (E), (F), (G), (H), (J), (K), (L), and (M). [EPA-R07-OAR-2017-0517; FRL-9975-68- Region 7].

(50) Lead Redesignation SIP and Maintenance Plan Portions of Pottawattamie County 9/18/2017 10/4/2018, 83 FR 50024 [EPA-R07-OAR-2018-0532; FRL-9984-64-Region 7].

(51) Section 110(a)(2) (D)(i)(I)—significant contribution to nonattainment (prong 1), and interfering with maintenance of the NAAQs (prong 2) (Interstate Transport) Infrastructure Requirements for the 2012 Annual Fine Particulate Matter (PM2.5) NAAQS Statewide 12/15/2015 9/6/2019, 84 FR 46887 This action approves the following CAA elements: 110(a)(1) and 110(a)(2 (D)(i)(I)—prongs 1 and 2 [EPA-R07-OAR-2019-0332; FRL-9998-89-Region 7].

(52) Sections 110 (a)(2) Infrastructure Prong 4 Requirements for the 2006 Fine Particulate Matter, 2012 Fine Particulate Matter, 2010 Nitrogen Dioxide, 2010 Sulfur Dioxide, 2008 Ozone, and 2015 Ozone NAAQS Statewide 1/17/2013; 7/28/2013; 7/29/2013; 7/29/2013; 12/22/2015; 11/30/2018; 5/14/2019 12/3/2019, 84 FR 66075 This action approves the following CAA elements: 110(a)(2)(D)(i)(II)—prong 4. [EPA-R07-OAR-2019-0468; FRL-10001-89-Region 7.].

(53) 2010 1-hour SO2 National Ambient Air Quality Standard Attainment Plan A portion of Muscatine County 5/26/2016 11/17/2020, 85 FR 73218 EPA-R07-OAR-2017-0416; FRL-10016-10-Region 7.

(54) Section 110(a)(2) Infrastructure Requirements for the 2015 O3 NAAQS Statewide 11/30/2018 8/23/2021, 86 FR 46984 [EPA-R07-OAR-2021-0378; FRL-8704-02-Region 7]. This action addresses the following CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II)—prongs 3 and 4, (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M). 110(a)(2)(D)(i)(I)—prongs 1 and 2 will be addressed in a separate action. 110(a)(2)(I) is not applicable.

(55) Transport SIP for the 2015 Ozone Standard Statewide 11/30/2018 4/15/2022, 87 FR 22463 [EPA-R07-OAR-2021-0870; EPA-HQ-OAR-2021-0663; FRL-9468-02-R7]. This transport SIP shows that Iowa does not significantly contribute to ozone nonattainment or maintenance in any other state. This submittal is approved as meeting the requirements of Clean Air Act section 110(a)(2)(D)(i)(I).

(56) Iowa Regional Haze Plan for the Second Implementation Period Statewide 8/15/2023 8/5/2025, 90 FR 37389 [EPA-R07-OAR-2024-0313; FRL-12096-02-R7]

(57) 2010 1-hour primary SO2 NAAQS Maintenance Plan A portion of Muscatine County 11/17/2021 11/18/2025, 90 FR 51554 EPA-R07-OAR-2025-0818; FRL-12901-01-R7.

Collected 2026-08-27T02:26:04Z. Source file · JSON

Browse this collection