(a) Purpose and scope. This section sets forth the applicable State implementation plan for Idaho under section 110 of the Clean Air Act, 42 U.S.C. 7401, and 40 CFR part 51 to meet national ambient air quality standards.

(b) Incorporation by reference. (1) Material listed as incorporated by reference in paragraphs (c) and (d) 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. The material incorporated is 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 on or after February 1, 2020, will be incorporated by reference in the next update to the SIP compilation.

(2)(i) EPA Region 10 certifies that the rules and regulations provided by EPA at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules and regulations which have been approved as part of the state implementation plan as of February 1, 2020.

(ii) EPA Region 10 certifies that the source-specific requirements provided by EPA at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated source-specific requirements which have been approved in the notebook “40 CFR 52.670(d)—Source Specific Requirements” as part of the state implementation plan as of February 1, 2020.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 10, Air and Radiation Division, 1200 Sixth Avenue, Suite 155, Seattle, Washington 98101; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

(c) EPA approved regulations.

(d) EPA approved State Source-specific requirements.

(e) EPA Approved Nonregulatory provisions and Quasi-Regulatory Measures.

The Idaho plan was evaluated on the basis of the following classifications:

(a) Carbon Monoxide. (1) EPA approves as a revision to the Idaho State Implementation Plan, the Limited Maintenance Plan for the Northern Ada County Carbon Monoxide Not-Classified Nonattainment Area, submitted by the State on January 17, 2002.

(2) EPA approves as a revision to the Idaho State Implementation Plan, the Northern Ada County Air Quality Maintenance Area Second 10-year Carbon Monoxide Limited Maintenance Plan submitted by the State on February 10, 2011.

(b) Lead. [Reserved]

(c) Nitrogen Dioxide. [Reserved]

(d) Ozone. [Reserved]

(e) Particulate Matter. (1) EPA approves as a revision to the Idaho State Implementation Plan, the Northern Ada County PM10 SIP Maintenance Plan, adopted by the State on September 26, 2002.

(2) EPA approves as a revision to the Idaho State Implementation Plan, the Northern Ada County PM10 Second Ten-Year Maintenance Plan adopted by the State on March 11, 2013.

(3) EPA approves as a revision to the Idaho State Implementation Plan, the Pinehurst PM10 Contingency Measures, adopted by the State on July 13, 1995.

(f) Sulfur Dioxide. [Reserved]

(g) Visibility protection. (1) EPA approves portions of a Regional Haze SIP revision submitted by the Idaho Department of Environmental Quality on October 25, 2010, as meeting the requirements of Clean Air Act section 169A and 40 CFR 51.308(e) regarding Best Available Retrofit Technology. The SIP revision also meets the requirements of 40 CFR 51.308(d)(2) and (4)(v) regarding the calculation of baseline and natural conditions for Craters of the Moon National Monument, Sawtooth Wilderness Area, and Selway-Bitterroot Wilderness Area and the statewide inventory of emissions of pollutants that are reasonably anticipated to cause or contribute to visibility impairment in any mandatory Class I Federal Area. The SIP revision also meets the requirements of Clean Air Act section 110(a)(2)(D)(i)(II) as it applies to visibility for the 1997 8-hour ozone NAAQS and 1997 PM2.5 NAAQS.

(2) EPA approves the remaining portions of the Regional Haze SIP revision submitted by the Idaho Department of Environmental Quality on October 25, 2010, as meeting the requirements of the Clean Air Act section 169A and 169B and 40 CFR 51.308.

(3) The EPA is vacating its approval of Idaho's NOX and SOX BART determination for the Riley boiler at The Amalgamated Sugar Company, LLC Nampa facility, published June 22, 2011.

(4) The EPA approves a Regional Haze SIP revision submitted by the Idaho Department of Environmental Quality on June 29, 2012, as meeting the requirements of Clean Air Act section 169A and 40 CFR 51.308(e) regarding Best Available Retrofit Technology for The Amalgamated Sugar Company LLC, facility located in Nampa, Idaho. The EPA is approving a revised NOX BART determination and revised emission limit for NOX, a revised emission limit for PM, and a SO2 BART Alternative for The Amalgamated Sugar Company, LLC, Nampa facility.

With the exceptions set forth in this subpart, the Administrator approves Idaho's plan for the attainment and maintenance of the national standards.

(a)(1) Regulation R of the Rules and Regulations for the Control of Air Pollution in Idaho, which is part of the sulfur dioxide (SO2) control strategy, is disapproved since it is inconsistent with the purposes and provisions of subpart G of this chapter. These requirements are not met by Regulation R in that the SO2 control strategy contained therein is not adequate for the attainment and maintenance of SO2 national ambient air quality standards (NAAQS).

(2) Rules 1-1801 through 1-1804 (Rules for Control of Sulfur Oxide Emissions from Sulfuric Acid Plants) of the “Rules and Regulations for the Control of Air Pollution in Idaho” are inadequate to ensure attainment and maintenance of Sulfur Dioxide National Ambient Air Quality Standards in the Eastern Idaho Intrastate Air Quality Control Region. Special limits have previously been established for certain existing acid plants in this Air Quality Control Region (§§ 52.670(c)(15) and 52.675(b)). Therefore, Rules 1-1801 through 1-1804 are approved except as they apply to existing acid plants with approved or promulgated emission limits that are more stringent than the limit found in 1-1802.

(b) Regulation for control of sulfur dioxide (SO2) emissions: Sulfuric Acid Plants. (1) The provisions of this paragraph shall apply to the owner(s) and operator(s) of The J. R. Simplot Company's Minerals and Chemical Division, located in Power County, Idaho, in the Eastern Idaho Intrastate Air Quality Control Region.

(2) The owner(s) and operator(s) of The J. R. Simplot Company facility shall utilize best engineering techniques in the operation of their plant to prevent fugitive SO losses. Such techniques shall include but are not limited to:

(i) Operating and maintaining all conducts, flues, and stacks in a leakfree condition.

(ii) Operating and maintaining all process equipment and gas collection systems in such a fashion that leakage of SO2 gases will be prevented to the maximum extent possible.

(3) The owner(s) and operator(s) of The J. R. Simplot Company facility shall limit SO2 emissions from their sulfuric acid plants per the following:

(i) The combined SO2 emissions from the designated 100 and 200 sulfric acid plants shall not exceed 2 kilograms (kg) per metric ton (4 pounds per ton) of 100 percent sulfuric acid produced.

(ii) The SO2 emissions from the designated 300 sulfuric acid plant and stack shall not exceed 994 kg per hour (2190 pounds per hour).

(4) (i) The owner(s) and operator(s) of The J. R. Simplot Company shall achieve compliance with the requirements specified in paragraphs (b)(2) and (b)(3) of this section in accordance with the following schedule:

(A) Advise EPA as to status of contract(s) and construction schedules for pollution abatement projects within 30 days of the effective date of this regulation.

(B) Attain final compliance by July 31, 1976.

(ii) A performance test of the 300 acid plant shall be necessary to determine whether compliance has been achieved with the requirements of paragraph (b)(3) of this section. Such test must be completed within 15 days of the final compliance date specified in paragraph (b)(4)(i) of this section. Notice must be given to the Administrator at least 10 days prior to such a test to afford him an opportunity to have an observer present.

(iii) Within 60 days after achieving the maximum production rate at which the 100 and 200 acid plant will be operated, but not later than 180 days after initial start-up of these plants and at such other times as may be required by the Administrator under section 114 of the Clean Air Act, the owner(s) and operator(s) of the facility shall conduct performance test(s) in accordance with the requirements of 40 CFR 60.8.

(iv) If the owner(s) and operator(s) of the J. R. Simplot Company facility are presently in compliance with the requirements of paragraphs (b)(2) and (b)(3) of this section or in compliance with a portion of these requirements, such compliance shall be certified to the Administrator within 15 days following the date of the publication of these requirements as a final regulation in the Federal Register. If the owner(s) or operator(s) of The J. R. Simplot Company achieve compliance prior to July 31, 1976, such compliance shall be certified to the Administrator within 15 days of the date of achieving compliance. The Administrator may request whatever supporting information he considers necessary to determine the validity of the certification.

(5) (i) By no later than September 30, 1976, the owner(s) and operator(s) of The J. R. Simplot Company facility shall install, calibrate, maintain and operate measurement system(s) for:

(A) Continuously monitoring and recording SO2 concentration rates in each sulfuric acid plant discharge stack per the requirements of 40 CFR 60.13 and 60.84.

(B) Continuously monitoring and recording gas volumetric flow rates in the exhaust stack of the designated 300 sulfuric acid plant.

(ii) By no later than October 30, 1976, and at such other times following that date as the Administrator may specify, the SO2 concentration measurement system(s) and stack gas volumetric flow rate system(s) installed and used pursuant to this paragraph shall be demonstrated to meet the measurement system performance specifications prescribed in 40 CFR 60.13 and Appendix E to this part, respectively. The Administrator shall be notified at least 10 days prior to the start of this field test period to afford the Administrator the opportunity to have an observer present.

(iii) The sampling point for monitoring the concentration of SO2 emissions shall be in the duct at the centroid of the cross section of the discharge stack if the cross sectional area is less than 4.65 m 2 (50 ft 2) or at a point no closer to the wall than 0.91 m (3 ft) if the cross sectional area is 4.65 m 2 (50 ft 2) or more. The monitor sample point shall be representative of the average concentration in the duct.

(iv) The measurement system(s) shall be maintained, operated and calibrated in accordance with the methods prescribed by the manufacturers. Records of maintenance and/or calibration shall be kept and submitted to the Administrator upon request. These records shall clearly show instrument readings before and after such calibration and/or maintenance.

(v) The owner(s) and operator(s) of The J. R. Simplot Company facility shall maintain a daily record of three hour average emission rate measurements for each sulfuric acid plant. Three hour average emission rates shall be calculated for each day beginning at midnight. For the 100 and 200 acid plants, the calculations shall be in conformance with 40 CFR 60.84. For the 300 acid plant, average SO2 emission rates expressed in kg SO2 per hour shall be calculated. The results of these calculations for each month shall be submitted to the Administrator within 15 days following the end of each month. Such submission shall identify each period of excess emissions that occurred and the nature and cause of any malfunction (if known), the corrective action taken or preventative measures adopted. The records of such measurements including strip charts and other appropriate raw data shall be retained for a minimum of two years following the date of such measurements.

(vi) The continuous monitoring and recordkeeping requirements of paragraph (b)(5) of this section shall become applicable September 30, 1976.

(6)(i) Compliance with the requirements set forth in paragraph (b)(3) of this section shall be determined using the emission rates measured by the continuous measurement system(s) installed, calibrated, maintained and operated in accordance with the requirements of paragraph (b)(5) of this section.

(ii) At the Administrator's discretion, compliance may also be determined using the manual source test methods per 40 CFR 60.85 and Appendix A to part 60 of this title. Emission rates for each stack shall be expressed in units consistent with those in paragraph (b)(3) of this section.

(iii) A violation of the requirements of paragraph (b)(3) of this section shall occur whenever the SO2 emission rates determined according to paragraph (b)(6)(i) or (b)(6)(ii) of this section exceed the corresponding SO2 emission rates specified in paragraph (b)(3) of this section.

(7) The owner(s) and operator(s) of The J. R. Simplot Company facility shall by September 30, 1976, install, calibrate, maintain and operate a network for continuously monitoring ground level ambient SO2 concentrations and wind speed and direction.

(i) The monitoring network shall consist of at least four ambient SO2 monitoring stations and one meteorological station placed at locations approved by the Administrator.

(ii) The SO2 monitoring network shall be consistent with automated equivalent methods for measurement of ambient concentrations of SO2 as defined in part 53 of this chapter.

(iii) The monitoring network installed and used pursuant to this subparagraph shall be maintained, operated and calibrated in accordance with the methods prescribed by the manufacturers. Records of maintenance and/or calibration shall be kept and submitted to the Administrator upon request. These records shall clearly show instrument readings before and after such calibration and/or maintenance.

(iv) The owner(s) and operator(s) of The J. R. Simplot Company facility shall maintain a daily record of all measurements required by this subparagraph. Strip charts and other raw data from the monitoring network shall be retained for a minimum of two years following the date of such measurement.

(v) The owner(s) and operator(s) of The J. R. Simplot Company shall calculate hourly average ambient SO2 concentrations, wind speed, and wind direction from each monitoring station and submit such values to the Administrator within 15 days following the end of each month.

(vi) The continuous monitoring and recordkeeping requirements of paragraph (b)(7) of this section shall become applicable September 30, 1976 and shall remain applicable until such time as the Administrator declares that an adequate ambient air data base has been established, which shall be no earlier than at least one calendar year.

(vii) Within 90 days of the Administrator's declaration of an adequate data base, Simplot shall submit to the Administrator a technical analysis of the degree of permanent control required on the 300 acid plant to ensure attainment and maintenance of NAAQS.

(8) Nothing in paragraph (b) of this section shall be construed to relieve the owner(s) and operator(s) of The J. R. Simplot Company to comply with any applicable requirements of part 60 of this title. In the event of conflicting requirements or interpretations between part 60 of this title and this paragraph, the more restrictive interpretation or requirement shall apply.

(9) In the event that measurement systems cannot be installed and operational by the date specified in this section, The J. R. Simplot Company shall propose the earliest possible date by which such requirements can be met. Such proposal shall include adequate justification and supporting documentation.

(a) This section identifies the original “Idaho Air Quality Implementation Plan” and all revisions submitted by Idaho that were federally approved prior to November 12, 2004.

(b) The plan was officially submitted on January 31, 1972.

(c) The plan revisions listed below were submitted on the dates specified.

(1) Miscellaneous additions (compliance schedules and non-regulatory provisions) to the plan submitted on February 23, 1972, by the Idaho Air Pollution Control Commission.

(2) Request for delegation of legal authority submitted on March 2, 1972, by the Governor.

(3) Compliance schedules submitted on April 12, 1972, by the Governor.

(4) Request for an 18-month extension for particulate matter in all AQCR's submitted on May 5, 1972, by the Governor.

(5) Miscellaneous additions (Non-regulatory) to the plan submitted on May 26, 1972, by the Idaho Air Pollution Control Commission.

(6) Appendices D and E of the plan submitted on June 9, 1972, by the Governor.

(7) Revisions to the Rules and Regulations for the Control of Air Pollution in Idaho submitted on February 15, 1973, by the Governor.

(8) Compliance schedules submitted on July 23, 1973, by the Governor.

(9) Amendment to Chapter IX of the plan to provide for review of indirect sources and a new Chapter XIV which sets forth the control strategy for attaining secondary particulate matter standards on October 16, 1973, by the Governor.

(10) Revisions to 1972 Session Laws, Chapter 347; 1973 Session Laws, Chapter 87, 136, 137, 138, 139, and 143; Chapters 18 and 52, Idaho Code; and the accompanying Attorney General's opinion submitted August 15, 1973, by the Governor.

(11) A new section 4 of Regulation A (General Provisions) and revised Regulation T (Air Pollution Sources Permits) of the Rules and Regulations for the Control of Air Pollution in Idaho (Chapter VII of the plan), an addition to Chapter XI of the plan to include administrative procedures for indirect source review, and compliance schedules submitted on July 1, 1974, by the Governor.

(12) Air quality maintenance area designation submitted on June 11, 1974, by the Idaho Department of Environmental and Community Services.

(13) An amendment to Regulation C (Ambient Air Quality Standards) and Regulation S (Control of Sulfur Oxide Emissions from Combined Lead/Zinc Smelters) of the Rules and Regulations for the Control of Air Pollution in Idaho and revisions to Chapter IV and Appendix F of the Implementation Plan submitted on January 10, 1975, by the Governor.

(14) Revised sections 2 and 6 of Regulation A (General Provisions) of the Rules and Regulations for the Control of Air Pollution in Idaho submitted on January 24, 1975, by the Governor.

(15) Consent Order for Beker Industries submitted on July 28, 1975 by the Governor.

(16) On January 15, 1980 the Governor submitted the transportation portion of the Boise-Ada County carbon monoxide plan.

(17) On July 1, 1980 the Governor submitted a SIP revision containing a variance from the indirect source regulation for an urban renewal project located in downtown Boise, as well as an adjustment to the TCP which had been submitted to EPA in January 1980.

(18) On February 14, 1980 the State of Idaho Department of Health and Welfare submitted a plan revision to meet the requirements of Air Quality Monitoring 40 CFR part 58, subpart C, § 58.20.

(19) Revisions to the “Implementation Plan for the Control of Air Pollution in the State of Idaho” submitted by the Governor of Idaho on January 15, 1980: Chapter I “Introduction;” Chapter II “General Administration;” Chapter III “Emissions Inventory;” Chapter IV “Air Quality Monitoring;” Chapter V “Source Surveillance;” Chapter VI “Emergency Episode Plan;” Chapter VII “Approval Procedures for New and Modified Sources;” Chapter VIII “Non-Attainment Area Plans;” Chapter VIII-a “Silver Valley Non-Attainment Plan;” Chapter VIII-e “Soda Springs Non-Attainment Plan;” Appendix A.2 Legal Authority (Section 39-100, Idaho Code); Appendix A.3, Title I, Chapter I, Rules and Regulations for the Control of Air Pollution in Idaho, except indirect source review provisions (1-1002.37, 1-1002.76 and 1-1004), variance provisions (1-1007 and 1-1904) and “Sulfur Dioxide Emission Limitations for Combined Zinc and Lead Smelters” (1-1851 through 1-1868); Appendix B “Emission Inventory, Ada County Carbon Monoxide Non-Attainment Area;” Appendix G “Permits—Silver Valley” (six permits); and Appendix K “Permits—Soda Springs” (four permits).

(20) Chapter VIII-b “Lewiston Non-Attainment Plan” submitted by the Governor of Idaho on January 15, 1980. On December 4, 1980, the Governor submitted revised pages 31-39, an operating permit for a kraft pulp and paper mill (Appendix H.1), operating permits for two grain loading terminals (Appendices H.3 and H.4), and an operating permit for an asphalt plant (Appendix H.5). On February 5, 1981 the Governor further revised the nonattainment area plan by submitting a permit for a wood products operation (Appendix H.2).

(21) Chapter VIII-d “Pocatello TSP Non-Attainment Plan” submitted by the Governor of Idaho on March 7, 1980. This submittal included operating permits for an elemental phosphorus plant (Appendix J.1), a phosphate fertilizer manufacturing plant (Appendix J.2), and a Portland cement plant (Appendix J.3). On February 5, 1981, the Governor submitted a revised Chapter VIII-d.

(22) On February 3, 1984 the State of Idaho Department of Health and Welfare submitted a revision to add a lead maintenance strategy to the Idaho Implementation Plan.

(23) On May 29, 1984, the State of Idaho Department of Health and Welfare submitted the Boise-Ada County carbon monoxide attainment plan as an official State Implementation Plan revision. The submittal was then supplemented on January 3, 1985.

(24) A revised Chapter VII Approval Procedures for New and Modified Facilities; revised sections 1-1002, 1-1012, 1-1013, 1-1014, and 1-1101 of Appendix A. 3 “Title 1, Chapter 1, Rules and Regulations for the Control of Air Pollution in Idaho Manual;” and the repeal of sections 1-1003, 1-1102 through 1-1112, and 1-1900 through 1-1906 of Appendix A. 3 “Title 1, Chapter 1, Rules and Regulations for the Control of Air Pollution in Idaho Manual;” of the Implementation Plan for the Control of Air Pollution in the State of Idaho, submitted by the Director of the State of Idaho Department of Health and Welfare on April 19, 1985. (Sections 1-1003, 1-1102 through 1-1112, and 1-1900 through 1-1906 of Appendix A. 3 “Title 1, Chapter 1, Rules and Regulations for the Control of Air Pollution in Idaho Manual” were previously approved by EPA at 40 CFR 52.670(c)(19).) An April 3, 1986, commitment letter from the Director of the State of Idaho Department of Health and Welfare regarding stack height provisions.

(i) Incorporation by reference. (A) Revised sections 1-1002, 1-1012, 1-1013, 1-1014, and 1-1101 of Appendix A. 3, “Title 1, Chapter 1, Rules and Regulations for the Control of Air Pollution in Idaho Manual” of the Implementation Plan for the Control of Air Pollution in the State of Idaho, as adopted by the Idaho Board of Health and Welfare on November 1, 1984. An April 3, 1986, commitment letter from the Director of the State of Idaho Department of Health and Welfare regarding stack height provisions.

(ii) Other materials. (A) Revised Chapter VII Approval Procedures for New and Modified Facilities of the Implementation Plan for the Control of Air Pollution in the State of Idaho, submitted by the Director of the Idaho Department of Health and Welfare on April 19, 1985. (This revised chapter replaces an earlier version which was approved by EPA and incorporated by reference at 40 CFR 52.670(c)(19).)

(B) Sections 1-1003, 1-1102 through 1-1112, and 1-1900 through 1-1906 of Appendix A. 3 “Title 1, Chapter 1, Rules and Regulations for the Control of Air Pollution in Idaho,” of the Implementation Plan for the Control of Air Pollution in the State of Idaho, repealed by the Idaho Board of Health and Welfare on November 1, 1984. (These sections, noted as repealed, replace the earlier versions which were approved by EPA and incorporated by reference at 40 CFR 52.670(c)(19).)

(25) On March 27, 1987, the State of Idaho Department of Health and Welfare submitted revised rules regulating the use of stack heights and dispersion techniques (section 16.01.1002.94 and section 16.01.1014) as revisions to the Idaho state implementation plan. Additional revisions included clarifications to section 16.01.1009 (Total Compliance), and section 16.01.1201.03 (Visible Emissions-Exception).

(i) Incorporation by reference. (A) March 27, 1987 letter from the State of Idaho Department of Health and Welfare to EPA, Region 10.

(B) Section 16.01.1002.94 (Stack), section 16.01.1014 (Stack Heights and Dispersion Techniques), section 16.01.1009 (Total Compliance) and section 16.01.1201.03 (Visible Emissions-Exception) adopted by the State of Idaho Department of Health and Welfare on February 11, 1987.

(26) On June 15, 1990, the Administrator of the Idaho Department of Health and Welfare submitted amendments to State of Idaho's Rules and Regulations for the Control of Air Pollution in Idaho Manual as revisions to the Idaho state implementation plan as follows: Idaho Administrative Procedures Act, Section 16.01.01002 Definitions, Section 16.01.01012 Procedures and Requirements for Permits to Construct and Operating Permits, and Section 16.01.01101 Air Quality Standards and Area Classification.

(27) On September 4, 1992, the Administrator of the Idaho Department of Health and Welfare submitted a revised and recodified Rules and Regulations for the Control of Air Pollution in Idaho Manual (Idaho Administrative Procedures Act Sections 16.01.01000 through 16.01.01999) as a revision to the Idaho state implementation plan.

(i) Incorporation by reference. (A) June 15, 1990, letter from the Administrator of the Idaho Department of Health and Welfare to EPA Region 10 submitting amendments to the Idaho state implementation plan.

(B) September 4, 1992, letter from the Administrator of the Idaho Department of Health and Welfare to EPA Region 10 submitting amendments to the Idaho state implementation plan.

(C) Idaho's Rules and Regulations for the Control of Air Pollution in Idaho Manual (except for sections IDAPA 16.01.01007 Variances, IDAPA 16.01.01853 through 16.01.01856 Combined Zinc and Lead Smelters, IDAPA 16.01.0951 through 16.01.01968 Regulation of Standards of Performance for New Stationary Sources, and IDAPA 16.01.01997 Confidentiality of Records) as adopted by the Board of the Idaho Department of Health and Welfare on July 30, 1992, and effective on August 21, 1992.

(28) On April 14, 1992, the State of Idaho submitted a revision to the SIP for Pinehurst, ID, for the purpose of bringing about the attainment of the national ambient air quality standards for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers. This submittal includes an additional area in Shoshone County adjacent to the City of Pinehurst which EPA designated nonattainment and moderate for PM-10 on January 20, 1994.

(i) Incorporation by reference. (A) April 7, 1992 letter from Idaho Department of Health and Welfare to EPA Region 10 submitting the Pinehurst Particulate Air Quality Improvement Plan as a revision to the Implementation Plan for the Control of Air Pollution in the State of Idaho. The plan has been adopted in accordance with the authorities and requirements of the Federal Clean Air Act and the Idaho Environmental Protection and Health Act (Idaho Code section 39-10/et seq).

(B) SIP revision for Pinehurst Particulate Air Quality Improvement Plan, February 5, 1992 (adopted on April 7, 1992).

(29) On June 29, 1994, the Idaho Department of Health and Welfare submitted a CO State Implementation Plan for Northern Ada County, Idaho.

(i) Incorporation by reference. (A) June 29, 1994 letter from Idaho Department of Health and Welfare to EPA Region 10 submitting the CO SIP for Northern Ada County, Idaho.

(B) Minor Revision of the Northern Ada County, Idaho 1984 State Implementation Plan for CO, June 1994 (including Ada County Ordinance 228, City of Boise Ordinance 5273, City of Meridian Ordinance 547, City of Garden City Ordinance 558, and City of Eagle Ordinance 177), as adopted by the Idaho Department of Health and Welfare on June 28, 1994.

(30) On January 7, 1994, the Administrator for the Idaho Department of Health and Welfare, Division of Environmental Quality, submitted the State PROGRAM as a revision to the Idaho SIP.

(i) Incorporation by reference. (A) The January 3, 1994 letter from the Administrator of the Idaho Department of Health and Welfare, Division of Environmental Quality, submitting the PROGRAM to EPA.

(B) The State Implementation Plan Revision to Establish a State Small Business Stationary Source Technical and Environmental Compliance Assistance Program (which includes the text of Idaho Code 39-118E, Small Business Assistance, signed into law Senate bill 1236 by Idaho Governor, Cecil D. Andrus, on March 29, 1993), dated December 29, 1993, and adopted on January 3, 1994.

(31) On November 14, 1991, and on December 30, 1994, the Idaho Department of Health and Welfare (IDHW) submitted revisions to the Idaho State Implementation Plan (SIP) for the Northern Ada County/Boise Particulate (PM10) Air Quality Improvement Plan.

(i) Incorporation by reference. (A) November 14, 1991, letter from the IDHW Administrator to the EPA Region 10 Regional Administrator submitting a revision to the Idaho SIP for the Northern Ada County/Boise Particulate Air Quality Improvement Plan; The Northern Ada County Boise Particulate (PM10) Air Quality Improvement Plan adopted on November 14, 1991.

(B) December 30, 1994, letter from the IDHW Administrator to the EPA Region 10 Regional Administrator including a revision to the Idaho SIP for the Northern Ada County/Boise PM10 Air Quality Improvement Plan; Appendix C-1, Supplemental Control Strategy Documentation, Northern Ada County/Boise PM10 Air Quality Improvement Plan, adopted December 30, 1994, with the following attachments: Garden City Ordinances #514 (May 14, 1987), #533 (January 10, 1989) and #624 (September 13, 1994); Meridian Ordinance #667 (August 16, 1994); Eagle Ordinance #245 (April 26, 1994); Ada County Ordinance #254 (November 3, 1992); and Table Ordinance-1 (December 30, 1994).

(32) On December 6, 2000, the Idaho Department of Environmental Quality submitted amendments to State of Idaho's Rules and Regulations for the Control of Air Pollution in Idaho as revisions to the Idaho state implementation plan as follows: sections 58.01.01.563 through 58.01.01.574.

(i) Incorporation by reference. (A) Section 58.01.01.563 Transportation Conformity, Section 58.01.01.564 Incorporation by Reference, Section 58.01.01.565 Abbreviations, Section 58.01.01.566 Definitions for the Purpose of Sections 563 Through 574 and 582, Section 58.01.01.567 Agencies Affected by Consultation, Section 58.01.01.568 ICC Member Roles in Consultation, Section 58.01.01.569 ICC Member Responsibilities in Consultation, Section 58.01.01.570 General Consultation Process, Section 58.01.01.571 Consultation Procedures, Section 58.01.01.572 Final Conformity Determinations by USDOT, Section 58.01.01.573 Resolving Conflicts, Section 58.01.01.574 Public Consultation Procedures.

(33) On February 9, 2001, the Idaho Department of Environmental Quality submitted amendments to State of Idaho's Rules and Regulations for the Control of Air Pollution in Idaho as revisions to the Idaho state implementation plan as follows:

(i) Incorporation by reference. (A) Section 58.01.01.582 Interim Conformity Provisions for Northern Ada County Former Nonattainment Area for PM-10.

(34) On February 9, 2001, the Idaho Department of Environmental Quality submitted amendments to State of Idaho's Rules and Regulations for the Control of Air Pollution in Idaho as revisions to the Idaho state implementation plan as follows: Section 58.01.01.204.

(i) Incorporation by reference. (A) IDAPA 58.01.01.204 Permit Requirements for New Major Facilities or Major Modifications in Nonattainment Areas and in the Former PM-10 Northern Ada County Nonattainment Area (as Defined in Section 582), state adopted January 26, 2001.

(35) On August 16, 1996, the State of Idaho adopted and submitted a revision to the SIP for Sandpoint, Idaho, for the purpose of bringing about the attainment of the national ambient air quality standards for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers.

(i) Incorporation by reference. (A) Ordinance No. 939, Material Specifications for Street Sanding Material, as adopted by the City of Sandpoint on February 22, 1994.

(B) Ordinance No. 965, Solid Fuel Heating Appliance Ordinance, as adopted by the City of Sandpoint on February 21, 1995.

(C) The following terms and conditions limiting particulate matter emissions in the following permits:

(1) State of Idaho Air Pollution Operating Permit for Lake Pre-Mix concrete, Permit No. 777-00182, issued May 17, 1996, the following conditions for the cement silo vent: 1.1, 2.1.1, 2.1.2, 3.1.1, and 3.1.2.

(2) State of Idaho Air Pollution Operating Permit for Interstate Concrete & Asphalt, Permit No. 017-00048, issued August 2, 1999, the following conditions: for the asphalt plant, 2.2, 3.1.1, 4.1, 4.1.1, 4.1.2, 4.2.1 (as it applies to the hourly PM10 emission limit in Appendix A), 4.2.2, 4.2.2.1, 4.2.2.2, and 4.2.2.3; for the concrete batch plant, 2.1, 3.1.1, 4.1, 4.1.1, and 4.1.2; Appendix A (as it applies to PM10 emission rates after 7/1/96) and Appendix B (as it applies after 7/1/96).

(3) State of Idaho Department of Environmental Quality Air Quality Tier II Operating Permit for Louisiana-Pacific Corporation, Permit No. 017-00003, issued October 31, 2001, the following conditions: for the Kipper and Sons Hog Fuel Boiler, 2.3 (as it applies to PM10), 2.5, 2.7, 2.13, 2.14, 2.17, 2.19; Cleaver-Brooks Natural Gas-Fired Boilers, 3.2 (as it applies to PM10); Pneumatic Conveyance System, 4.2, 4.4, 4.7; Drying Kilns, 5.2, 5.4, 5.5; Fugitive Emission Sources, 6.5, 6.7, 6.13; and the Appendix (as it applies to PM10).

(ii) Additional materials. (A) Sandpoint PM10 Air Quality Improvement Plan, adopted August 16, 1996.

(36) [Reserved]

(37) On May 17, 1994, May 11, 1995, November 21, 1996, February 28, 1997, December 18, 1997, April 9, 1998, May 5, 1999, December 5, 2000, and May 30, 2002, the Idaho Department of Environmental Quality submitted amendments to State of Idaho Rules for Control of Air Pollution in Idaho (IDAPA 58.01.01) as revisions to the Idaho State implementation plan.

(i) Incorporation by reference. (A) IDAPA 58.01.01 as in effect on March 30, 2001 except for the following provisions: section 000; section 002; section 003; section 008; section 009; section 010; subsections 107.03; section 128; sections 140 through 149; section 161; subsection 203.03; section 209; section 210; section 214; subsection 222.03; section 223; sections 300 through 387; subsection 401.01.a. and 401.04; sections 440 and 441; sections 525 through 538; sections 552, 553, 556, 558, and 561; subsection 577.06; sections 585, 586, 587, 590 and 591; section 700; section 710; sections 750 and 751; sections 775 and 776; section 818; section 819; section 820; subsection 824.01; sections 835 through 839; and sections 855 through 862.

(B) IDAPA 58.01.01 sections 209 and 700 as in effect on April 5, 2000.

(C) IDAPA 58.01.01 sections 552, 553, 556, 558, and 561 as in effect on March 15, 2002.

(38) The Idaho Department of Environmental Quality (Idaho DEQ, the State, or Idaho) submitted a PM10 maintenance plan and redesignation request for the Ada County/Boise, Idaho area on September 27, 2002, and provided supplemental information on July 10, 2003 and July 21, 2003.

(i) Incorporation by reference. (A) The following terms and conditions limiting particulate matter emissions in the following permits:

(1) State of Idaho Air Pollution Operating Permit for LP Wood Polymers, Inc. Permit No. 001-00115, issued July 12, 2002, the following conditions: 1.1, 1.3, 3.1, and the Appendix.

(2) State of Idaho Air Pollution Operating Permit for Consolidated Concrete Company, Permit No. 001-00046, issued December 03, 2001, the following conditions: 1.1, 1.3, 2.3, 3.1, 3.2, and the Appendix.

(3) State of Idaho Air Pollution Operating Permit for Crookham Company, Permit No. 027-00020, issued January 18, 2002, the following conditions: 1.1, 1.3, 2.1, 2.3, 3.1, 3.1.1, 3.1.2, 3.2, and the Appendix.

(4) State of Idaho Air Pollution Operating Permit for Double D Service Center, Permit No. 001-00168, issued February 4, 2002, the following conditions: 1.1, 1.3, 3.1, 3.2.1, 3.2.2, 3.2.3, and the Appendix.

(5) State of Idaho Air Pollution Operating Permit for Plum Creek Northwest Lumber, Inc., Permit No. 001-00091, issued July 12, 2002, the following conditions: 1.1, 1.3, 2.1.2, 3.1, and the Appendix.

(6) State of Idaho Air Pollution Operating Permit for C. Wright Construction, Inc., Permit No. T2-000033, issued July 08, 2003, the following conditions: 2 (heading only), 2.5, (2.12, Table 2.2 as it applies to PM10), 2.14, 3 (heading only), 3.3, Table 3.2, 3.4, 3.5, 3.6, 3.7, 3.8, 3.10, 4 (heading only), 4.2, 4.3, 4.4, 4.7, 5, and Table 5.1.

(7) State of Idaho Air Pollution Operating Permit for Nelson Construction Co., Permit No. T2-020029, issued July 21, 2003, the following conditions: 2 (heading only), 2.12, 2.14, 3 (heading only, 3.3, 3.4, 3.6, 3.7, 3.9, 3.10, 3.11, 3.12, 4 (heading only), 4.3, 4.4, 4.5, 4.6, 5, and Table 5.1.

(8) State of Idaho Air Pollution Operating Permit for Mike's Sand and Gravel, Permit No. 001-00184, issued July 12, 2002, the following conditions: 1.1, 1.3, 2.2.1, 3.1, and the Appendix.

(9) State of Idaho Air Pollution Operating Permit for Idaho Concrete Co., Permit No. T2-020031, issued July 8, 2003, the following conditions: 2 (heading only), 2.5, 2.13, 3 (heading only), 3.3, 3.4, 3.6, 3.7, 3.8, 4 (heading only), and Table 4.1.

(10) State of Idaho Air Pollution Operating Permit for Idaho Concrete Co., Permit No T2-020032, issued July 8, 2003, the following conditions: 2 (heading only), 2.5, 2.13, 3 (heading only), 3.3, 3.4, 3.6, 3.7, 3.8, 4 (heading only), and Table 4.1.

(11) State of Idaho Air Pollution Operating Permit for Idaho Concrete Co., Permit No. T2-020033, issued July 8, 2003, the following conditions: 2 (heading only), 2.5, 2.13, 3 (heading only), 3.3, 3.4, 3.6, 3.7, 3.8, 4 (heading only), and Table 4.1.

(12) State of Idaho Air Pollution Operating Permit for The Amalgamated Sugar Company LLC, Permit No. 027-00010, issued September 30, 2002, the following conditions: 2 (heading only), (2.7, Table 2.2 as it applies to PM10), 2.10, 2.10.1, 2.10.2, 2.11, 2.11.1, 2.11.2, 2.11.3, 2.11.4, 2.11.5, 2.12, 2.12.1, 2.12.2, 2.12.3, 2.13, 2.13.1, 2.13.2, 2.13.3, 2.14, 2.14.1, 2.14.2, 2.16, 3 (heading only), (3.3, Table 3.2 as it applies to PM10), 3.5, 3.7, 3.8, 3.8.1, 3.8.2, 3.8.3, 3.8.4, 3.8.5, 3.8.6, 3.8.7, 3.8.8, 3.9, 4 (heading only), (4.3, Table 4.1 as it applies to PM10), 4.5, 4.6, 4.7, 5 (heading only), (5.3, Table 5.3 as it applies to PM10), 5.5, 5.9, 5.9.1, 5.9.2, 5.9.3, 5.9.4, 5.9.5, 5.9.6, 5.9.7, 5.9.8, 5.9.9, 5.10, 5.11, 6 (heading only), 6.3, Table 6.1, 6.5, 6.6, 6.7, 6.7.1, 6.7.2, 6.8, 7 (heading only), (7.3, Table 7.1 as it applies to PM10), 7.5, 7.7, 7.7.1, 7.7.2, 7.8, 8 (heading only), 8.3, Table 8.1, 8.5, 8.7, 8.7.1, 8.7.2, 8.8, 9 (heading only), 9.3, Table 9.1, 9.5, 9.7, 9.7.1, 9.7.2, 9.8, 10 (heading only), 10.3, Table 10.1, 10.6, 10.8, 10.8.1, 10.8.2, 10.9, 11 (heading only), 11.3, Table 11.2, 11.6, 11.8, 11.8.1, 11.8.2, 11.9, 12 (heading only), 12.3, Table 12.1, 12.5, 12.7, 12.7.1, 12.7.2, 12.8, 13 (heading only), 13.1 (except as it applies to conditions 13.3, 13.3.1, 13.3.2, 13.5, 13.5.1, 13.5.2, 13.5.3, 13.6, 13.6.1, 13.6.2 and 13.9), Table 13.1 (except conditions 13.3, 13.5 and 13.6), (13.2, Table 13.2 as it applies to PM10), 13.2.1, 13.4, 13.4.1, 13.4.2, 13.4.3, 13.7, 13.7.1, 13.7.2, 13.8, 13.8.1, 13.8.2, 13.8.3, 13.10, and 13.11.

(a) Except as otherwise provided in paragraph (b) of this section, emission limitations and other provisions contained in Permits to Construct and Tier II Operating Permits issued by the Idaho Department of Environmental Quality in accordance with the Federally-approved State of Idaho Rules for Control of Air Pollution in Idaho, incorporated by reference in section 52.670 (IDAPA 58.01.01.200 through 222, IDAPA 58.01.01.400 through 406), shall be applicable requirements of the Federally-approved Idaho SIP (in addition to any other provisions) for the purposes of section 113 of the Clean Air Act and shall be enforceable by EPA and by any person in the same manner as other requirements of the SIP.

(b) Operating Permits authorizing the use of alternative emission limits (bubbles) under IDAPA 58.01.01.401.01.a, 58.01.01.440, and 58.01.01.441 (including the use of banked emission reduction credits in a bubble pursuant to IDAPA 58.01.01.461), and Tier II Operating Permits authorizing compliance schedule extensions under IDAPA 58.01.01.401.04 must be submitted to EPA for approval as revisions to the Idaho SIP before they become applicable requirements of the Idaho SIP.

(a) The State of Idaho Rules for Control of Air Pollution in Idaho, specifically, IDAPA 58.01.01.005 through 007 (definitions), IDAPA 58.01.01.107.03.a, .b, .c (incorporations by reference), IDAPA 58.01.01.200 through 222 (permit to construct rules); IDAPA 58.01.01.510 through 516 (stack height rules); and IDAPA 58.01.01.575 through 581 (standards, increments and area designations) (except IDAPA 58.01.01.577), are approved as meeting the requirements of title I, part C, subpart 1 of the Clean Air Act for preventing significant deterioration of air quality.

(b) The requirements of sections 160 through 165 of the Clean Air Act are not met for Indian reservations since the plan does not include approvable procedures for preventing significant deterioration of air quality on Indian reservations. Therefore, the provisions of § 52.21 except paragraph (a)(1) are hereby incorporated and made part of the applicable plan for Indian reservations in the State of Idaho.

(c) The requirements of section 165 of the Clean Air Act are not met for sources subject to prevention of significant deterioration requirements prior to August 22, 1986, the effective date of EPA's approval of the rules cited in paragraph (a) of this section. Therefore, the provisions of § 52.21 except paragraph (a)(1) are hereby incorporated and made part of the applicable plan for sources subject to § 52.21 prior to August 22, 1986.

(a) The requirements of section 169A of the Clean Air Act are not met, because the plan does not include approvable procedures for protection of visibility in mandatory Class I Federal areas.

(b)-(c) [Reserved]

(a) The Administrator, by authority delegated under section 188(d) of the Clean Air Act, as amended in 1990, hereby extends for one year (until December 31, 1995) the attainment date for the Power-Bannock Counties PM-10 nonattainment area and the Sandpoint PM-10 nonattainment area.

(b) The Administrator, by authority delegated under section 188(d) of the Clean Air Act, as amended in 1990, hereby grants a second one-year extension (until December 31, 1996) to the attainment date for the Power-Bannock Counties PM-10 nonattainment area.