40 CFR 52.820 - Identification of plan.

Regulations last checked for updates: Feb 06, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

View all text of Subpart Q [§ 52.820 - § 52.842]

§ 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.

(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 20—Scope of Title—Definitions
567-20.1	Scope of Title—Definitions	7/22/2020	6/25/2021, 86 FR 33544	The definitions for “anaerobic lagoon,” “odor,” “odorous substance,” “odorous substance source” are not SIP approved.
567-20.2	Definitions	3/15/2022	4/19/2024, 89 FR 28640	The definitions for “anaerobic lagoon,” “odor,” “odorous substance,” “odorous substance source” are not SIP approved.
567-20.3	Air Quality Forms Generally	4/22/2015	8/10/2015, 80 FR 33192
Chapter 21—Compliance
567-21.1	Compliance Schedule	5/11/22	4/6/23, 88 FR 20408
567-21.2	Variances	4/4/2007	10/16/2007, 72 FR 58535
567-21.3	Emission Reduction Program	3/14/1990	6/29/1990, 55 FR 26690
567-21.4	Circumvention of Rules	3/14/1990	6/29/1990, 55 FR 26690
567-21.5	Evidence Used in Establishing That a Violation Has or Is Occurring	11/16/1994	10/30/1995, 60 FR 55198
567-21.6	Temporary Electricity Generation for Disaster Situations	10/15/2008	12/29/2009, 74 FR 68692
Chapter 22—Controlling Pollution
567-22.1	Permits Required for New or Existing Stationary Sources	5/11/22	4/6/23, 88 FR 20408
567-22.2	Processing Permit Applications	4/22/2015	8/10/2015, 80 FR 33192
567-22.3	Issuing Permits	4/22/2015	6/11/2015; 80 FR 33192	Subrule 22.3(6) has not been approved as part of the SIP. Subrule 22.3(6), Limits on Hazardous Air Pollutants, has been approved under Title V and section 112(l). The remainder of the rule has not been approved pursuant to Title V and section 112(l).
567-22.4	Special Requirements for Major Stationary Sources Located in Areas Designated Attainment or Unclassified (PSD)	12/16/2015	9/9/2016, 81 FR 62387	None.
567-22.5	Special Requirements for Nonattainment Areas	12/16/2015	9/9/2016, 81 FR 62387	None.
567-22.8	Permit by Rule	4/18/2018	2/5/2019, 84 FR 1615
567-22.9	Special Requirements for Visibility Protection	4/17/2019	6/1/2020, 85 FR 33023
567-22.10	Permitting Requirements for Country Grain Elevators, Country Grain Terminal Elevators, Grain Terminal Elevators and Feed Mill Equipment	12/16/2015	9/9/2016, 81 FR 62387	None.
567-22.105	Title V Permit Applications	11/11/2009	10/25/2013, 78 FR 63887	Only subparagraph (2)i(5) is approved as part of the SIP. In 22.105(1) Duty to apply the last sentence “Alternatively, an owner or operator may submit a complete and timely application through the electronic submittal format specified by the department.” is not approved. In 22.105(1) “a” new subparagraph (9) is not approved.
567-22.200	Definitions for Voluntary Operating Permits	10/18/1995	4/30/1996, 61 FR 18958
567-22.201	Eligibility for Voluntary Operating Permits	4/4/2007	10/16/2007, 72 FR 58535
567-22.202	Requirement to Have a Title V Permit	4/9/1997	6/25/1998, 63 FR 34600
567-22.203	Voluntary Operating Permit Applications	11/11/2009	10/25/2013, 78 FR 63887
567-22.204	Voluntary Operating Permit Fees	12/14/1994	4/30/1996, 61 FR 18958
567-22.205	Voluntary Operating Permit Processing Procedures	12/14/1994	4/30/1996, 61 FR 18958
567-22.206	Permit Content	10/18/1995	4/30/1996, 61 FR 18958
567-22.207	Relation to Construction Permits	10/15/2008	12/29/2009, 74 FR 68692
567-22.208	Suspension, Termination, and Revocation of Voluntary Operating Permits	12/14/1994	4/30/1996, 61 FR 18958
567-22.209	Change of Ownership for Facilities with Voluntary Operating Permits	11/11/2009	10/25/2013, 78 FR 63887
567-22.300	Operating Permit by Rule for Small Sources	4/17/2019	6/1/2020, 85 FR 33023
Chapter 23—Emission Standards for Contaminants
567-23.1	Emission Standards	11/24/2010	10/25/2013, 78 FR 63887	Sections 23.1(2)-(5) are not approved in the SIP. Section 23.1 (5) is approved as part of the 111(d) plan.
567-23.2	Open Burning	1/14/2004	11/3/2004, 69 FR 63945	Subrule 23.2(3)g(2) was not submitted for approval. Variances from open burning rule 23.2(2) are subject to EPA approval.
567-23.3	Specific Contaminants	3/22/17	6/8/2018, 83 FR 26599	567 IAC 23.3(3) “(d)” is not SIP approved.
567-23.4	Specific Processes	6/11/2008	12/29/2009, 74 FR 68692	Subrule 23.4(10) is not SIP approved.
Chapter 24—Excess Emissions
567-24.1	Excess Emission Reporting	11/24/2010	10/25/2013, 78 FR 63887
567-24.2	Maintenance and Repair Requirements	3/14/1990	6/29/1990, 55 FR 26690
Chapter 25—Measurement of Emissions
567-25.1	Testing and Sampling of New and Existing Equipment	3/15/2023	4/19/2024, 89 FR 28640
Chapter 26—Prevention of Air Pollution Emergency Episodes
567-26.1	General	3/14/1990	6/29/1990, 55 FR 26690
567-26.2	Episode Criteria	3/22/17	6/8/2018, 83 FR 26599
567-26.3	Preplanned Abatement Strategies	3/14/1990	6/29/1990, 55 FR 26690
567-26.4	Actions During Episodes	3/14/1990	6/29/1990, 55 FR 26690
Chapter 27—Certificate of Acceptance
567-27.1	General	3/22/17	6/8/2018, 83 FR 26599
567-27.2	Certificate of Acceptance	3/14/1990	6/29/1990, 55 FR 26690
567-27.3	Ordinance or Regulations	3/22/17	6/8/2018, 83 FR 26599
567-27.4	Administrative Organization	3/14/1990	6/29/1990, 55 FR 26690
567-27.5	Program Activities	3/14/1990	6/29/1990, 55 FR 26690
Chapter 28—Ambient Air Quality Standards
567-28.1	Statewide standards	3/15/2023	4/19/2024, 89 FR 28640
Chapter 29—Qualification in Visual Determination of the Opacity of Emissions
567-29.1	Methodology and Qualified Observer	5/13/1998	5/22/2000, 65 FR 32030
Chapter 31—Nonattainment Areas
567-31.1	Permit Requirements Relating to Nonattainment Areas	12/16/2015	9/9/2016, 81 FR 62387	None.
567-31.2	Rescinded	3/22/17	6/8/2018, 83 FR 26599	Rescinded and reserved
567-31.3	Nonattainment new source review requirements for areas designated nonattainment on or after May 18, 1998	1/15/2014	5/15/2014, 79 FR 27763
567-31.4	Preconstruction review permit program	1/15/2014	5/15/2014, 79 FR 27763
567-31.9	Actual PALs	1/15/2014	5/15/2014, 79 FR 27763
567-31.10	Validity of Rules	1/15/2014	5/15/2014, 79 FR 27763
567-31.20	Special requirements for nonattainment areas designated before May 18, 1998 (originally adopted in 567-22.5(455B))	4/22/2015	8/10/2015, 80 FR 33192
Chapter 33—Special Regulations and Construction Permit Requirements for Major Stationary Sources—Prevention of Significant Deterioration (PSD) of Air Quality
567-33.1	Purpose	4/18/2018	2/5/2019, 84 FR 1615
567-33.3	Special Construction Permit Requirements for Major Stationary Sources in Areas Designated Attainment or Unclassified (PSD)	7/22/2020	6/25/2021, 86 FR 33544	Provisions of the 2010 PM2.5 PSD—Increments, SILs and SMCs rule, published in the Federal Register on October 20, 2010, relating to SILs and SMCs that were affected by the January 22, 2013, U.S. Court of Appeals decision are not, at the state's request, included in Iowa's SIP provisions (see Federal Register, March 14, 2014) (Vol. 79, No. 50).
567-33.9	Plantwide Applicability Limitations	7/17/2013	6/17/2016, 81 FR 39585
567-33.10	Exceptions to adoption by reference	11/1/2006	5/14/2007, 72 FR 27056
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.

[64 FR 7094, Feb. 12, 1999] Editorial Notes:For Federal Register citations affecting § 52.820, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

authority: 42 U.S.C. 7401

cite as: 40 CFR 52.820