Document headings vary by document type but may contain
                    the following: the agency or agencies that issued and signed a document
the number of the CFR title and the number of each part
                      the document amends, proposes to amend, or is directly
                      related to
the agency docket number / agency internal file number
the RIN which identifies each regulatory action listed in
                      the Unified Agenda of Federal Regulatory and Deregulatory
                      Actions See the
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                    for more details.
 Environmental Protection Agency 40 CFR Part 52
[IA-191-1191; FRL-7812-5]
 AGENCY: Environmental Protection Agency (EPA).
 ACTION: Final rule; notice of administrative change.
 SUMMARY: EPA is updating the materials submitted by Iowa that are incorporated by reference (IBR) into the state implementation plan (SIP). The regulations affected by this update have been previously submitted by the state agency and approved by EPA. This update affects the SIP materials that are available for public inspection at the Office of the Federal Register (OFR), Office of Air and Radiation Docket and Information Center, and the Regional Office.
 DATES: This action is effective September 23, 2004.
 ADDRESSES: SIP materials which are incorporated by reference into 40 CFR part 52 are available for inspection at the following locations: Environmental Protection Agency, Region VII, 901 North 5th Street, Kansas City, KS 66101; or at the EPA, Office of Air and Radiation Docket and Information Center, Room B-108, 1301 Constitution Avenue, NW., (Mail Code 6102T), Washington, DC 20460, or the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: 
                        *http://www.archives.gov/​federal_​register/​code_​of_​federal_​regulations/​ibr_​locations.html.*
 FOR FURTHER INFORMATION CONTACT: Evelyn VanGoethem at (913) 551-7659, or by e-mail at 
                        *vangoethem.evelyn@epa.gov.*


SUPPLEMENTARY INFORMATION: The SIP is a living document which the State can revise as necessary to address the unique air pollution problems in the state. Therefore, EPA from time to time must take action on SIP revisions containing new and/or revised regulations as being part of the SIP. On May 22, 1997 (62 FR 27968), EPA revised the procedures for incorporating by reference Federally-approved SIPs, as a result of consultations between EPA and the Office of Federal Register (OFR). The description of the revised SIP document, IBR procedures and “Identification of plan” format are discussed in further detail in the May 22, 1997, 
                    **Federal Register**
                     document. On February 12, 1999, EPA published a document in the 
                    **Federal Register**
                     (64 FR 7091) beginning the new IBR procedure for Iowa. In today's document EPA is updating the IBR material. EPA is also making a minor correction to the table in § 52.820(c). On February 2, 1998 (63 FR 5269), EPA updated regulations for Linn County Health Department. The table is being updated to include information in the “Explanation” column that was inadvertently omitted. EPA is also making a minor correction to the table in § 52.820(d). On March 11, 1999 (64 FR 12090), EPA approved an administrative consent order for IES Utilities. The title of the order, which was identified as “98-AQ-20”, is corrected to read “97-AQ-20.” On November 22, 1999 (64 FR 63694), paragraph (b) of § 52.824 Original identification of plan section was updated instead of paragraph (b) of § 52.820 Identification of plan section. We are correcting paragraph (b) of § 52.824. EPA has determined that today's rule falls under the “good cause” exemption in section 553(b)(3)(B) of the Administrative Procedures Act (APA) which, upon finding “good cause,” authorizes agencies to dispense with public participation and section 553(d)(3) which allows an agency to make a rule effective immediately (thereby avoiding the 30-day delayed effective date otherwise provided for in the APA). Today's rule simply codifies provisions which are already in effect as a matter of law in Federal and approved state programs. Under section 553 of the APA, an agency may find good cause where procedures are “impractical, unnecessary, or contrary to the public interest.” Public comment is “unnecessary” and “contrary to the public interest” since the codification only reflects existing law. Immediate notice in the CFR benefits the public by updating citations. Statutory and Executive Order Reviews Under Executive Order 12866 (58 FR 51735, October 4, 1993), this action is not a “significant regulatory action” and is therefore not subject to review by the Office of Management and Budget. This action is not subject to Executive Order 13211, “Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use” (66 FR 28355, May 22, 2001) because it is not a significant regulatory action under Executive Order 12866. Because the agency has made a good cause finding that this action is not subject to notice-and-comment requirements under the Administrative Procedure Act or any other statute as indicated in the 
                    **SUPPLEMENTARY INFORMATION**
                     section above, it is not subject to the regulatory flexibility provisions of the Regulatory Flexibility Act (5 U.S.C 601 
                    *et seq.*), or to sections 202 and 205 of the Unfunded Mandates Reform Act of 1995 (UMRA) (Pub. L. 104-4). In addition, this action does not significantly or uniquely affect small governments or impose a significant intergovernmental mandate, as described in sections 203 and 204 of UMRA. This action also does not have a substantial direct effect on one or more Indian tribes, on the relationship between the Federal government and Indian tribes, or on the distribution of power and responsibilities between the Federal government and Indian tribes, as specified by Executive Order 13175 (65 FR 67249, November 9, 2000), nor will it have substantial direct effects on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government, as specified in Executive Order 13132 (64 FR 43255, August 10, 1999). This action also is not subject to Executive Order 13045 (62 FR 19885, April 23, 1997), because it is not economically significant. This action does not involve technical standards; thus the requirements of section 12(d) of the National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) do not apply. The action also does not involve special consideration of environmental justice related issues as required by Executive Order 12898 (59 FR 7629, February 16, 1994). With this action, EPA has taken the necessary steps to eliminate drafting errors and ambiguity, minimize potential litigation, and provide a clear legal standard for affected conduct, as required by section 3 of Executive Order 12988 (61 FR 4729, February 7, 1996). EPA has complied with Executive Order 12630 (53 FR 8859, March 15, 1998) by examining the takings implications of this action in accordance with the “Attorney General's Supplemental Guidelines for the Evaluation of Risk and Avoidance of Unanticipated Takings” issued under the executive order. This action does not impose an information collection burden under the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 
                    *et seq.*). EPA's compliance with these statutes and Executive Orders for the underlying rules are discussed in previous actions taken on the State's rules. The Congressional Review Act, 5 U.S.C. 801 
                    *et seq.*, as added by the Small Business Regulatory Enforcement Fairness Act of 1996, generally provides that before a rule may take effect, the agency promulgating the rule must submit a rule report, which includes a copy of the rule, to each House of the Congress and to the Comptroller General of the United States. Section 808 allows the issuing agency to make a rule effective sooner than otherwise provided by the Congressional Review Act if the agency makes a good cause finding that notice and public procedure is impracticable, unnecessary or contrary to the public interest. Today's action simply codifies provisions which are already in effect as a matter of law in Federal and approved state programs (5 U.S.C. 808(2). As previously stated, EPA has made such a good cause finding, including the reasons therefore, and established an effective date of September 23, 2004. EPA will submit a report containing this rule and other required information to the U.S. Senate, the U.S. House of Representatives, and the Comptroller General of the United 
                    ( print page 56944)
                    States prior to publication of the rule in the 
                    **Federal Register**
                    . This action is not a “major rule” as defined by 5 U.S.C. 804(2). EPA has also determined that the provisions of section 307(b)(1) of the CAA pertaining to petitions for judicial review are not applicable to this action. Prior EPA rulemaking actions for each individual component of the Iowa SIP compilation had previously afforded interested parties the opportunity to file a petition for judicial review in the United States Court of Appeals for the appropriate circuit within 60 days of such rulemaking action. Thus, EPA does not believe that this action reopens the 60-day period for filing such petitions for judicial review for these “Identification of plan” actions for Iowa. List of Subjects in 40 CFR Part 52 Environmental protection
Air pollution control
Carbon monoxide
Incorporation by reference
Intergovernmental relations
Lead
Nitrogen dioxide
Ozone
Particulate matter
Reporting and recordkeeping requirements
Sulfur oxides
Volatile organic compounds
 Dated: August 31, 2004. William Rice, Acting Regional Administrator, Region 7.
 Chapter I, title 40, Code of Federal Regulations, is amended as follows: PART 52—[AMENDED]
 1.The authority citation for part 52 continues to read as follows: Authority:
                        42 U.S.C. 7401 
                            *et seq.* Subpart Q—Iowa
 2.In § 52.820 paragraphs (b), (c), (d) and (e) are revised to read as follows: § 52.820
  
 (b) Incorporation by reference. (1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to August 10, 2004, 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 August 10, 2004, will be incorporated by reference in the next update to the SIP compilation. (2) EPA Region VII 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 August 10, 2004. (3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region VII, Air Planning and Development Branch, 901 North 5th Street, Kansas City, Kansas 66101; or at the EPA, Air and Radiation Docket and Information Center, Room B-108, 1301 Constitution Avenue, NW (Mail Code 6102T), Washington, DC 20460; or the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: 
                            *http://www.archives.gov/​federal_​register/​code_​of_​federal_​regulations/​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 20—Scope of Title-Definitions-Forms-Rule of Practice**567-20.1
Scope of Title
5/13/98
5/22/00, 65 FR 32031567-20.2
Definitions
7/21/99
3/4/02, 67 FR 9593
The definitions for anaerobic lagoon, odor, odorous substance, and odorous substance, and source, are not SIP approved.567-20.3
Air Quality Forms Generally
4/24/02
3/7/03, 68 FR 10971**Chapter 21—Compliance**567-21.1
Compliance Schedule
3/14/90
6/29/90, 55 FR 26690567-21.2
Variances
7/21/99
3/04/02, 67 FR 9593567-21.3
Emission Reduction Program
3/14/90
6/29/90, 55 FR 26690567-21.4
Circumvention of Rules
3/14/90
6/29/90, 55 FR 26690567-21.5
Evidence Used in Establishing That a Violation Has or Is Occurring
11/16/94
10/30/95, 60 FR 55198**Chapter 22—Controlling Pollution**567-22.1
Permits Required for New or Existing Stationary Sources
7/17/02
3/7/03, 68 FR 10971
Subrules 22.1(2), 22.1(2) “g,” 22.1(2) “i” have a state effective date of 5/23/01.567-22.2
Processing Permit Applications
4/9/97
6/25/98, 63 FR 34600567-22.3
Issuing Permits
4/24/02
3/7/03, 68 FR 10971
Subrule 22.3(6) is not SIP approved.567-22.4
Special Requirements for Major Stationary Sources Located in Areas Designated Attainment or Unclassified (PSD)
3/14/01
3/04/02, 67 FR 9593567-22.5
Special Requirements for Nonattainment Areas
7/21/99
3/04/02, 67 FR 9593567-22.8
Permit by Rule
7/21/99
3/04/02, 67 FR 9593( print page 56945)567-22.105
Title V Permit Applications
11/16/94
10/30/95, 60 FR 55198
Only subparagraph (2)i(5) is included in the SIP.567-22.200
Definitions for Voluntary Operating Permits
10/18/95
4/30/96, 61 FR 18958567-22.201
Eligibility for Voluntary Operating Permits
4/24/02
3/7/03, 68 FR 10971567-22.202
Requirement to Have a Title V Permit
4/9/97
6/25/98, 63 FR 34601567-22.203
Voluntary Operating Permit Applications
10/14/98
3/04/02, 67 FR 9593567-22.204
Voluntary Operating Permit Fees
12/14/94
4/30/96, 61 FR 18958567-22.205
Voluntary Operating Permit Processing Procedures
12/14/94
4/30/96, 61 FR 18958567-22.206
Permit Content
10/18/95
4/30/96, 61 FR 18958567-22.207
Relation to Construction Permits
12/14/94
4/30/96, 61 FR 18958567-22.208
Suspension, Termination, and Revocation of Voluntary Operating Permits
12/14/94
4/30/96, 61 FR 18958567-22.300
Operating Permit by Rule for Small Sources
4/24/02
3/7/03, 68 FR 10971
Subrule 22.300(7) “c” has a state effective date of 10/14/98.**Chapter 23—Emission Standards for Contaminants**567-23.1
Emission Standards
10/14/98
5/22/00, 65 FR 32031
Subrules 23.1(2)-(5) are not SIP approved.567-23.2
Open Burning
5/13/98
5/22/00, 65 FR 32031567-23.3
Specific Contaminants
7/21/99
3/04/02, 67 FR 9593
Subrule 23.3(2) has a state effective date of 5/13/98. Subrule 23.3(3) “(d)” is not SIP approved.567-23.4
Specific Processes
7/21/99
3/04/02, 67 FR 9593
Subrule 23.4(10) is not SIP approved.**Chapter 24—Excess Emissions**567-24.1
Excess Emission Reporting
5/13/98
5/22/00, 65 FR 32031567-24.2
Maintenance and Repair Requirements
3/14/90
6/29/90, 55 FR 26690**Chapter 25—Measurement of Emissions**567-25.1
Testing and Sampling of New and Existing Equipment
4/24/02
3/7/03, 68 FR 10971**Chapter 26—Prevention of Air Pollution Emergency Episodes**567-26.1
General
3/14/90
6/29/90, 55 FR 26690567-26.2
Episode Criteria
3/14/90
6/29/90, 55 FR 26690567-26.3
Preplanned Abatement Strategies
3/14/90
6/29/90, 55 FR 26690567-26.4
Actions During Episodes
3/14/90
6/29/90, 55 FR 26690**Chapter 27—Certificate of Acceptance**567-27.1
General
3/14/90
6/29/90, 55 FR 26690567-27.2
Certificate of Acceptance
3/14/90
6/29/90, 55 FR 26690567-27.3
Ordinance or Regulations
3/14/90
6/29/90, 55 FR 26690567-27.4
Administrative Organization
3/14/90
6/29/90, 55 FR 26690567-27.5
Program Activities
3/14/90
6/29/90, 55 FR 26690**Chapter 28—Ambient Air Quality Standards**567-28.1
Statewide Standards
3/14/90
6/29/90, 55 FR 26690**Chapter 29—Qualification in Visual Determination of the Opacity of Emissions**567-29.1
Methodology and Qualified Observer
5/13/98
5/22/00, 65 FR 32031**Chapter 31—Nonattainment Areas**567-31.1
Permit Requirements Relating to Nonattainment Areas
2/22/95
10/23/97, 62 FR 55172( print page 56946)567-31.2
Conformity of General Federal Actions to the Iowa SIP or Federal Implementation Plan
5/13/98
5/22/00, 65 FR 32031**Linn County**Chapter 10
Linn County Code of Ordinance Providing for Air Quality Chapter 10
3/7/97
2/2/98, 63 FR 5268
The following sections are not EPA-approved: 10.2, definition of federally enforceable; 10.4(1), 10.9(2), 10.9(3), 10.9(4), 10.11, and 10.15.**Polk County**Chapter V
Polk County Board of Health Rules and Regulations Air Pollution Chapter V
4/15/98, 10/4/00
1/9/04, 69 FR 1538
Article I, Section 5-2, definition of “variance”; Article VI, Sections 5-16(n), (o) and (p); Article VIII, Article IX, Sections 5-27(3) and (4); Article XIII, and Article XVI, Section 5-75(b) are not a part of the SIP.
 (d) EPA-approved State source-specific orders/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
3/25/91
11/1/91, 56 FR 56158.(2) Interstate Power Company
89-AQ-04
2/21/90
11/1/91, 56 FR 56158.(3) Grain Processing Corporation
74-A-015-S
9/18/95
12/1/97, 62 FR 63454.(4) Grain Processing Corporation
79-A-194-S
9/18/95
12/1/97, 62 FR 63454.(5) Grain Processing Corporation
79-A-195-S
9/18/95
12/1/97, 62 FR 63454.(6) Grain Processing Corporation
95-A-374
9/18/95
12/1/97, 62 FR 63454.(7) Muscatine Power and Water
74-A-175-S
9/14/95
12/1/97, 62 FR 63454.(8) Muscatine Power and Water
95-A-373
9/14/95
12/1/97, 62 FR 63454.(9) Monsanto Corporation
76-A-161S3
7/18/96
12/1/97, 62 FR 63454.(10) Monsanto Corporation
76-A-265S3
7/18/96
12/1/97, 62 FR 63454.(11) IES Utilities, Inc
97-AQ-20
11/20/98
3/11/99, 64 FR 12090
SO2
                                     Control Plan for Cedar Rapids.(12) Archer-Daniels-Midland Corporation
SO2
                                     Emissions Control Plan
9/14/98
3/11/99, 64 FR 12090
ADM Corn Processing SO2
                                     Control Plan for Cedar Rapids.(13) Linwood Mining and Minerals Corporation
98-AQ-07
3/13/98
3/18/99, 64 FR 13346
PM10
                                     control plan for Buffalo.(14) Lafarge Corporation
98-AQ-08
3/13/98
3/18/99, 64 FR 13346
PM10
                                     control plan for Buffalo.(15) Holnam, Inc.
A.C.O. 1999-AQ-31
9/2/99
11/06/02, 67 FR 67565
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
5/16/01
11/06/02, 67 FR 67565
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
7/24/01
11/06/02, 67 FR 67565
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
9/2/99
11/06/02, 67 FR 67565
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.( print page 56947)(19) Lehigh Portland Cement Company
Permits for plant No. 17-01-005, Project Nos. 99-631 and 02-037
2/18/02
11/06/02, 67 FR 67565
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
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32456
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)
8/19/02
6/10/04, 69 FR 32457
Provisions of the permit that relate to pollutants other than PM10
                                     are not approved by EPA as part of this 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
1/27/72
5/31/72, 37 FR 10842(2) Request for a Two Year Extension to Meet the NAAQS
Council Bluffs
1/27/72
5/31/72, 37 FR 10842
Correction notice published 3/2/76.(3) Revisions to Appendices D and G
Statewide
2/2/72
5/31/72, 37 FR 10842
Correction notice published 3/2/76.(4) Source Surveillance and Record Maintenance Statements
Statewide
4/14/72
3/2/76, 41 FR 8960(5) Statement Regarding Public Availability of Emissions Data
Statewide
5/2/72
3/2/76, 41 FR 8960( print page 56948)(7) Letter Describing the Certificates of Acceptance for Local, Air Pollution Control Programs
Linn County, Polk County
12/14/72
10/1/76, 41 FR 43407(8) High Air Pollution Episode Contingency Plan
Statewide
6/20/73
10/1/76, 41 FR 43407(9) Summary of Public Hearing on Revised Rules Which Were Submitted on July 17, 1975
Statewide
9/3/75
10/1/76, 41 FR 43407(10) Air Quality Modeling to Support Sulfur Dioxide Emission Standards
Statewide
3/4/77
6/1/77, 42 FR 27892(11) Nonattainment Plans
Mason City, Davenport, Cedar Rapids, Des Moines
6/22/79
3/6/80, 45 FR 14561(12) Information on VOC Sources to Support the Nonattainment Plan
Linn County
10/8/79
3/6/80, 45 FR 14561(13) Information and Commitments Pertaining to Legally Enforceable RACT Rules to Support the Nonattainment Plan
Linn County
11/16/79
3/6/80, 45 FR 14561(14) Lead Plan
Statewide
8/19/80
3/20/81, 46 FR 17778(15) Letter to Support the Lead Plan
Statewide
1/19/81
3/20/81, 46 FR 17778(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
4/18/80
4/17/81, 46 FR 22372(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
9/16/80
4/17/81, 46 FR 22372(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
11/17/80
4/17/81, 46 FR 22372(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
6/26/81
3/5/82, 47 FR 9462(20) Air Monitoring Strategy
Statewide
7/15/81
4/12/82, 47 FR 15583(21) Letter of Commitment to Revise Unapprovable Portions of Chapter 22
Statewide
5/14/85
9/12/85, 50 FR 37176(22) Letter of Commitment to Submit Stack Height Regulations and to Implement the EPA's Regulations until the State's Rules Are Approved
Statewide
4/22/86
7/11/86, 51 FR 25199(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
4/22/87
6/26/87, 52 FR 23981(24) PM10
                                     SIP
Statewide
10/28/88
8/15/89, 54 FR 33536( print page 56949)(25) Letter Pertaining to NOX
                                     Rules and Analysis Which Certifies the Material Was Adopted by the State on October 17, 1990
Statewide
11/8/90
2/13/91, 56 FR 5757(26) SO2
                                     Plan
Clinton
3/13/91
11/1/91, 56 FR 56158(27) Letter Withdrawing Variance Provisions
Polk County
10/23/91
11/29/91, 56 FR 60924
Correction notice published 1/26/93.(28) Letter Concerning Open Burning Exemptions
Statewide
10/3/91
1/22/92, 57 FR 2472(29) Compliance Sampling Manual
Statewide
1/5/93
5/12/93, 58 FR 27939(30) Small Business Assistance Plan
Statewide
12/22/92
9/27/93, 58 FR 50266(31) Voluntary Operating Permit Program
Statewide
12/8/94, 2/16/96, 2/27/96
4/30/96, 61 FR 18958(32) SO2
                                     Plan
Muscatine
6/19/96, 5/21/97
12/1/97, 62 FR 63454(33) SO2
                                     Maintenance Plan
Muscatine
4/25/97
3/19/98, 63 FR 13343(34) SO2
                                     Control Plan
Cedar Rapids
9/11/98
3/11/99, 64 FR 12090(35) PM10
                                     Control Plan
Buffalo, Iowa
10/1/98
3/18/99, 64 FR 13346
 3.Section 52.824 is amended by revising paragraph (b) to read as follows: § 52.824
  
 (b) The plan was officially submitted on January 27, 1972.


[FR Doc. 04-21386 Filed 9-22-04; 8:45 am] BILLING CODE 6560-50-P