Table 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)1RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnotice1 R307-1-1 – adds thedefinition of “AirQuality RelatedValues” and“Carcinogen”R307-101-2DefinitionsR307-101-2DefinitionsR307-101-2 (Definitions). The rulesthat the State submitted on September18, 2006, were superseded by furtherrevisions that the State submitted onApril 17, 2008. As explained in ourJanuary 2, 2013 notice (78 FR 37, 42),“[w]e approved the 2008 version of therule on September 2, 2008) andincorporated it by reference into theCode of Federal Regulations. See 73 FR51222.” Thus, in this proposal we arenot acting on the 2006 version of R307-101-2.No actionneeded2 R307-1-3.1.1Notice of IntentRequired(page E-41 of theEffective Rule)R307-401-1Notice of Intent RequiredDeleting this rule R307-401-1and moving it to R307-401-5(language was modified fromthe 1999 version to the 2006version but is substantially thesame)R307-401-5Notice of IntentReview of eCFR on GPO website, andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule werenumbered R307-1-3.1.1 and R307-1-3-1.6.Proposingapproval3 R307-401-1PurposeReview of eCFR on GPO website andhistorical dockets dating back to 1998,Proposingapproval1This rulemaking covered the following three areasof rules: (1) R307-1-1 (Forward and Definitions);(2) R307-3 (Control of Installations); and (3) R307-15-6(Permit Content, which are the State’s operating permit requirements that are not approved into the SIP).2This column includes the following information fromthe SIP submittal package: the rule number and title, an explanation of the 2006 State submittal, and asummary of how the State’s 2006 rule analysis described their action .Table 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)2RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeper DAR File No. 28325(11/3/2005) A purposestatement has been added toclarify that other permittingrules have independentrequirements that also mustbe met.show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.It does not appear a provision likeR307-401-1 (Purpose) in the 2006submittal was ever approved by EPA inthe past.4 R307-1-3.1.6“ The followinginformation whereapplicable, shall besubmitted with thenotice of intent;”R307-401-2Notice of Intent RequirementsDeleting this rule R307-401-2and moving it to R307-401-5(language was modified fromthe 1999 version to the 2006version but is substantially thesame)R307-401-5Notice of IntentReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule wasnumbered R307-1-3-1.6.Proposingapproval5 R307-1-3.1.2“Within 90 days ofreceipt of a completeapplication includingall the information....”(page E-41 of theEffective Rule)R307-401-3Review PeriodDeleting this rule and movingit to R307-401-6 (languagewas modified from the 1999version to the 2006 version butis substantially the same)per DAR File No. 28325(11/3/2005) Subsection R307-401-6(3) requires approval bythe Air Quality Board for anyR307-401-6Review PeriodReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule wasnumbered R307-1-3.1.2.We also note that R307-3.1.1 from the1992 rule contained completenessprovisions that now appear at R307-401-ProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)3RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticemajor source or modificationthat consumes more than 50percent of the availableincrement under PSD has beendeleted because concernsabout increment consumptionare better addressed throughother mechanisms.6(1).6 R-307-1-3.1.3Public Notice(pages E41-42 of theEffective Rule)R307-401-4Public NoticeDeleting this rule R307-401-4and moving it to R407-401-7(language was modified fromthe 1999 version to the 2006version but is substantially thesame)R407-401-7Public NoticeReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.As discussed in the notice for this action,we have not acted on this rule in pastactions. Public notice provisions in thecurrent SIP appear in R307-1-3.1.3.Proposingdisapproval7 R307-1-3.1.4“Whenever theexecutive secretarydetermines that theinformation submittedunder the provisions of...”(page E42 of theEffective Rule)R307-401-5Approval OrderDeleting this rule R307-401-5and moving it to R307-401-8(language was modified fromthe 1999 version to the 2006version)R307-401-8Approval OrderReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rules werenumbered R307-1-3.1.4 and R307-3-1.8.Proposingapproval8 R307-1-3.1.8 R307-401-6R307-401-8Approval OrderReview of eCFR shows that R307-1-3.1.8 has been approved on in 40 CFRProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)4RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeConditions for IssuingApproval OrderDeleting this rule and movingit to R307-401- 8 (languagewas modified from the 1999version to the 2006 version)52.2320(c)(25). 59 FR 35036 (July 8,1994).9 R307-1-3.1.9“The owner oroperator of a sourcepreviously approvedunder R307-1-3.1 or ina StateImplementation Planmay temporarilyrelocate....”(page E-44 ofEffective Rule)R307-401-7Temporary RelocationDeleting this rule and movingit to R307-401-17 (languagewas modified from the 1999version to the 2006 version butis substantially the same)R307-401-17Temporary RelocationReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994),which in that approval was State rulenumber R307-1-3.1.9.Proposingapproval10 R307-1-3.1.10“The owner oroperator of a majornew source or majormodification to belocated...”(page E-44 EffectiveRule)R307-401-8Nonattainment andMaintenance AreasDeleting this rule and movingit to R307-401-19 (languagewas modified from the 1999version to the 2006 version butis substantially the same)R307-401-19Analysis of AlternativesReview of eCFR shows that R307-1-3.1.10 has been acted on in 40 CFR52.2320(c)(25).We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994),which in that approval was State rulenumber R307-1-3.1.10.Proposingapproval11 R307-1-3.1.11R307-401-9R307-401-20Relaxation of limitationsR307-401-9 as submitted on 9/20/1999was approved in 71 FR 7679.ProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)5RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnotice“At the time that asource or modificationbecomes a majorsource...”(page E-44 EffectiveRule)Relaxation of limitationsDeleting this rule and movingit to R307-401-20 (language isthe same)12 R307-1-3.1.12Low Oxides ofNitrogen BurnerTechnology(page E-44-45 ofEffective Rule)R307-401-10Low Oxides of NitrogenBurner TechnologyDeleting R307-401-10 (1) and(2) have been moved to R307-325.R307-325Davis and Salt Lake Countiesand Ozone NonattainmentAreas: Ozone Provisions.Revisions to R307-325 werenot requested in 9/15/06 SIPsubmittal.R307-401-10 (1) as submitted on9/20/1999 was approved in 71FR7679.R307-401-10 (2) was moved to R307-325 and review of eCFR indicates thatwe have never approved this paragraph..Proposing toapproval ofdeletion ofR307-401-10(1)and (2).Revisions toR307-325 willbe acted onseparatelybecause theyare not part ofthe SIPsubmittalsbeing proposedfor action inthis notice.13 R307-1-3.1.5“Approval ordersissued by theExecutive Secretary inaccordance with theprovisions of ...”(page E-42 ofR307-401-11Eighteen Month ReviewDeleting this rule and movingit to R307-401-18 (language isthe same)R307-401-18Eighteen Month ReviewReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)6RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeEffective Rule)that approval the State rule number wasnumbered R307-1-3.1.5.14 R307-1-3.1.7.G, H(page E-44 ofEffective Rule)R307-413-1Definitions and GeneralRequirementsDeleting this rule R307-413(1) Definition of boiler andused oil were moved to R307-401-14R307-413 (1) Definition ofboiler and used oil weremoved to R307-401-14R307-401-14 (Used Oil Fuel Burned forEnergy Recovery) was previouslyproposed for approval (see 77 FR 37859(June 25, 2012)), and the final wassigned on October 19, 2012 (FederalRegister notice pending).No action15 R307-1-3.7“The following areexempt from thenotice of intentrequirement:Exemptions andSpecial Provisions”(pages E-42-44 ofEffective Rules)R307-413-2Small Source Exemptions –De minimus EmissionsDeleting this rule and movingit to R307-401-9 (languagewas modified from the 1999version to the 2006 version)per DAR File No. 28325(11/3/2005) the registry for deminimis sources innonattainement areas inSubsection R307-401-9(formerly in R307-413-2(2))has been changed to avoluntary registry that willapply statewide.R307-401-9Small Source ExemptionsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006. Additionally,this was not part of our approval in our1994 action, 59 FR 35036 (July 8,1994).Proposingapproval16 R307-1-3.1.7. B(page E-43 ofEffective Rule)R307-413-3Flexibility Changesper DAR File No. 28325Deleted Review of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,No actionrequiredTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)7RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnotice(11/3/2005) the flexibilityprovisions that were located inSection R307-413-3 have beendeleted because the rule hasprovided little benefit and isroutinely misinterpreted. Theunderlying goals of thisexemption are being metthrough other mechanismssuch as flexibility permit9/20/1999 or 9/15/2006.The State rule R307-413-3 (FlexibilityChanges) is a State-only rule and hasnever been approved into the SIP.17 R307-1-3.1.7.C(page E-43 ofEffective Rule)R307-413-4Other Exemptionsper DAR File No. 28325(11/3/2005) R307-413-4(5)and (6) have been deletedbecause they are no longermeeting the intended purpose.Deleting this rule and movingit to R307-401-10 (languagewas modified from the 1999version to the 2006 version butis substantially the same)R307-401-10Source Category ExemptionsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule wasnumbered R307-1-3.1.7.Proposingapproval18 R307-1-3.1.7.D(page E-43-44 ofEffective Rule)R307-413-5Replacement-in-KindEquipmentDeleting this rule and movingit to R307-401-11 (languagewas modified from the 1999version to the 2006 version butR307-401-11Replacement-in-KindEquipmentReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.ProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)8RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeis substantially the same)19 R307-1-3.1.7.E(page E-44 ofEffective Rule)R307-413-6Reduction of AirContaminantsDeleting this rule and movingit to R307-401-12R307-401-12Reduction of AirContaminantsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.Proposingdisapproval20 No comparable rulecite from 10/9/1998submittalR307-413-7Exemption from Notice ofIntent Requirements for UsedOil Fuel Burned for EnergyRecoveryDeleting this rule and movingit to R307-401-14R307-401-14Used Oil Fuel Burned forEnergy RecoveryR307-401-14 (Used Oil Fuel Burned forEnergy Recovery) was previouslyproposed for approval (see 77 FR 37859(June 25, 2012)); and the final wassigned on October 19, 2012 (FederalRegister notice pending).No actionrequired21 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-401-2DefinitionsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.Proposingapproval22 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-401-3ApplicabilityReview of eCFR on GPO website andhistorical dockets show no prior actionhas been taken on this rule as submittedon 10/9/1998, 9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule wasProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)9RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticenumbered R307-1-3.1.1.23 No comparable rulecite for R307-401-4(1)and (2) from10/9/1998 submittalNo comparable rule cite forR307-401-4(1) and (2) from9/20/1999 submittalR307-401-4(1) and (2)3General RequirementsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.Proposingapproval24 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-401-13Plantwide ApplicabilityLimitsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.Proposingapproval25 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-401-15Air Strippers and SoilVenting ProjectsR307-401-15 (Air Strippers and SoilVenting Projects) was previouslyproposed for approval (see 77 FR 37859(June 25, 2012)); and the final wassigned on October 19, 2012 (FederalRegister notice pending).No actionrequired26 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-401-16De minimisEmissions FromSoil Aeration Projects(De minimisEmissions From SoilAeration Projects) was previouslyproposed for approval (see 77 FR 37859(June 25, 2012)); and the final wassigned on October 19, 2012 (FederalNo actionrequired3We note that R307-401-4(3) was R307-401-3.1.12 inthe SIP we approved in 1994.Table 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)10RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeRegister notice pending).27 No comparable rulecite from 10/9/1998submittalNo comparable rule cite from9/20/1999 submittalR307-410-1PurposeReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.Proposingapproval28 No comparable rulecite from 10/9/1998submittalR307-410-1DefinitionsDeleting this rule and movingit to R307-410-2per DAR File No. 28325(11/3/2005) The definitions inRule R307-410 are deletedhere and incorporated byreference from 40CFR 51.100into subsection R307-410-2(2). Two definitions that arepresently located in sectionR307-101-2 are being movedto R307-410-2 because theterms are not use in otherrules.R307-410-2DefinitionsReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.Proposingapproval29 No comparable rulecite from 10/9/1998submittalR307-410-2Use of Dispersion ModelR307-410-3Use of Dispersion ModelReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,ProposingapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)11RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeDeleting this rule and movingit to R307-410-39/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule wasrenumbered R307-1-3.7.We note that the 9/15/2006 submittaldeleted the sentence “A proposal forsubstitution or modification of a modelshall be made a subject of requiredpublic hearings” from this rule.30 No comparable rulecite from 10/9/1998submittalR307-410-3Modeling Criteria PollutantImpacts in Attainment AreasDeleting this rule and movingit to R307-410-4R307-410-4Modeling Criteria PollutantImpacts in Attainment AreasReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We note that VOCs are not listed inTable 1 of this rule; the State interpretsits approval order rule that the ExecutiveSecretary will not issue an approvalorder unless the owner or operator hasprovided a satisfactory demonstrationthat the source will not contribute to apotential violation of the NAAQS, asrequired under R307-401-8(1)(b)(vii).Also see Utah’s Uintah Basin PermittingGuidance in the docket.Proposingapproval31 No comparable rulecite from 10/9/1998submittalR307-410-4Documentation of AmbientR307-410-5Documentation of AmbientReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onProposingdisapprovalTable 1. EPA Cross-walk Analysis: State of Utah October 9, 1998, September 20, 1999, September 15, 2006 and Prior SIPSubmittals (Prepared May 30, 2013)12RowtrackingnumberCitation from10/9/1998 submittal1R307-1-3Number of the Rule andRule Title (or firstsentence where there isno rule title)Corresponding Citation fromthe 9/20/1999 SIP SubmittalCorresponding Citation fromthe 9/15/06 SIP Submittal2Discussion if there is a Prior EPAAction and/or Approval Into the SIPAction we aretaking in thisnoticeAir Impacts for Hazardous AirPollutantsDeleting this rule and movingit to R307-410-5Air Impacts for HazardousAir Pollutantsthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.This is the first time we are proposing anaction on this rule.32 No comparable rulecite from 10/9/1998submittalR307-410-5Stack Heights and DispersionTechniquesDeleting this rule and movingit to R307-410-6R307-410-6Stack Heights and DispersionTechniquesReview of eCFR on GPO website andhistorical dockets dating back to 1998,show no prior action has been taken onthis rule as submitted on 10/9/1998,9/20/1999 or 9/15/2006.We approved an earlier version of thisrule in 59 FR 35036 (July 8, 1994); inthat approval the State rule numberedR307-1-3.8.Proposingpartial approvaland partialdisapproval