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  2. Air Quality Implementation Plans

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the New Hampshire SIP

New Hampshire Nonregulatory
Name of nonregulatory SIP provisionApplicable geographic or nonattainment areaState submittal date/effective dateEPA approved dateExplanations
"State of New Hampshire Implementation Plan"Statewide1/27/19725/31/1972, 37 FR 10842The plan was officially submitted on January 27, 1972.
Miscellaneous non-regulatory additions to the plan correcting minor deficienciesStatewide2/23/19727/27/1972, 37 FR 15080See 52.1535(c)(1).
Non-regulatory provisions for retention and availability of air quality dataStatewide3/23/19727/27/1972, 37 FR 15080See 52.1535(c)(2).
Attainment dates of national primary and secondary air quality standardsStatewide8/8/19729/22/1972, 37 FR 19806See 52.1535(c)(3).
Compliance schedulesStatewide2/14/19736/20/1973, 38 FR 16144See 52.1535(c)(5).
Compliance schedulesStatewide3/22/19736/20/1973, 38 FR 16144See 52.1535(c)(6).
Revision exempting steam locomotives from the planStatewide4/3/197312/14/1973, 38 FR 34476See 52.1535(c)(7).
AQMA identification materialStatewide5/20/19746/2/1975, 40 FR 23746See 52.1535(c)(9).
Attainment plans to meet the requirements of Part D for carbon monoxide for Metropolitan Manchester and ozone for AQCR 121, programs for the review of construction and operation of new and modified major stationary sources of pollution in both attainment and non-attainment areas and certain miscellaneous provisionsStatewide5/29/19794/11/1980, 45 FR 24869See 52.1535(c)(12).
November 6, 1979 letter from New Hampshire Assistant Attorney GeneralStatewide11/6/19794/11/1980, 45 FR 24869See 52.1535(c)(12).
March 17, 1980 letter addressing external emission offsetsStatewide3/17/19804/11/1980, 45 FR 24869See 52.1535(c)(12).
Attainment plans to meet the requirements of Part D for total suspended particulates and sulfur dioxide in Berlin, NHAreas designated non-attainment for one or more pollutants9/19/19796/23/1980, 45 FR 41942See 52.1535(c)(13).
A plan to provide comprehensive public participation and an analysis of the effects of the New Hampshire 1979 SIP revisionsStatewide2/28/19809/9/1980, 45 FR 59313See 52.1535(c)(15).
A comprehensive air quality monitoring plan, intended to meet requirements of 40 CFR Part 58Statewide1/30/198012/18/1980, 45 FR 83227See 52.1535(c)(17).
A plan to attain and maintain the National Ambient Air Quality Standard for lead and to amend the state's air quality standardsStatewide4/15/19807/15/1981, 46 FR 36699See 52.1535(c)(18).
A letter further explaining the state procedures for review of new major sources of lead emissions and confirming the use of reference methodsStatewide12/9/19807/15/1981, 46 FR 36699See 52.1535(c)(18).
Revisions to meet the requirements of Part D and certain other sections of the Clean Air Act, as amended, for attaining carbon monoxide standards in the City of ManchesterCity of Manchester1/12/19811/7/1982, 47 FR 763See 52.1535(c)(19). These revisions supplement the 1979 CO attainment plan.
Revision to the January 12, 1981 CO Attainment Plan for Manchester, NHCity of Manchester2/18/19811/7/1982, 47 FR 763See 52.1535(c)(19).
Carbon monoxide attainment plan revisions for the City of Manchester which meet the requirements of Part D of the Act for 1982 SIP revisionsCity of Manchester10/5/19826/27/1983, 48 FR 29479See 52.1535 (c)(23).
Revision to the October 5, 1982 CO Attainment Plan for Manchester, NHCity of Manchester12/20/19826/27/1983, 48 FR 29479See 52.1535(c)(23).
The TSP Plan to attain primary standards in Berlin, New HampshireBerlin, NH5/9/19849/27/1984, 49 FR 38104See 52.1535(c)(33).
Letter from the New Hampshire Air Resources Commission submitting revisions to the SIPStatewide4/26/19859/17/1987, 52 FR 35081See 52.1535(c)(37).
Letter interpreting NH's regulation for Continuous Emission Monitoring SystemsStatewide1/20/19869/17/1987, 52 FR 35081See 52.1535(c)(37).
NH Letter of intent to implement applicable emission limits required by EPA's New Source Performance Standard (NSPS)Statewide5/12/19879/17/1987, 52 FR 35081See 52.1535(c)(37).
Letter submitting a revision to the CO Attainment Plan for the City of Nashua, NHNashua and 11 surrounding towns9/12/19858/25/1988, 53 FR 32391See 52.1535(c)(39). Attainment plans for carbon monoxide for the City of Nashua including an extension of the attainment date to December 31, 1990.
Narrative submittals, including an attainment demonstration for carbon monoxide for the City of NashuaNashua and 11 surrounding towns2/26/19858/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter identifying extensions to the Nashua intersection-specific measures (Build I)Nashua and 11 surrounding area12/3/19858/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter submitting final motor vehicle emissions inspection (I&M) program for the Nashua, NH areaNashua and 11 surrounding towns10/7/19868/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter from Governor John H. Sununu to Michael R. Deland committing to take legislative measures to convert the Inspection/Maintenance program in the Nashua area to the use of computerized emission analyzers in the event that the program is found to not be achieving the necessary emission reductionsNashua and 11 surrounding towns3/6/19878/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter from NH DES, Air Resources Division providing additional information on Nashua intersection-specific traffic flow improvements in Nashua, NH CO Attainment PlanNashua and 11 surrounding towns5/12/19878/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter from NH DES, Air Resources Division submitting additions to the Nashua, NH CO Attainment PlanNashua and 11 surrounding towns10/15/19878/25/1988, 53 FR 32391See 52.1535(c)(39).
Letter from the New Hampshire Air Resources Division dated July 6, 1989 submitting revisions to the NH SIPStatewide7/6/19898/19/1994, 59 FR 42766See 52.1535(c)(40).
Letter from the New Hampshire Air Resources Division dated February 12, 1991 submitting a revision to the NH SIPStatewide2/12/19918/14/1991, 56 FR 40252See 52.1535(c)(41).
Nonregulatory portions of the State submittalStatewide2/12/19918/14/1991, 56 FR 40252See 52.1535(c)(41).
Letter from the New Hampshire Air Resources Division dated November 21, 1989 submitting a revision to the NH SIPStatewide11/21/19896/13/1991, 56 FR 27197See 52.1535(c)(43).
Letter from Robert W. Varney, Commissioner of the Department of Environmental Services of New Hampshire, to John B. Hammond, Acting Director of the New Hampshire Office of Legislative Services, dated November 15, 1989, adopting final rulesStatewide11/21/19896/13/1991, 56 FR 27197See 52.1535(c)(43).
Letter from the New Hampshire Air Resources Division dated September 12, 1990 submitting a revision to the NH SIP that withdraws nine source-specific operating permits incorporated by reference at 40 CFR 52.1535(c)(21), (c)(25) and (c)(32)Statewide9/12/199012/12/1991, 56 FR 64703See 52.1535(c)(44).
Letter from the New Hampshire Air Resources Division dated July 2, 1991 submitting documentation of a public hearingStatewide7/2/199112/12/1991, 56 FR 64703See 52.1535(c)(44).
Letter from the New Hampshire Air Resources Division dated February 12, 1991 submitting revisions to the NH SIPStatewide2/12/19918/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated May 7, 1991 withdrawing certain portion of the February 12, 1991 SIP submittalStatewide5/7/19918/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated August 20, 1991 withdrawing certain portion of the February 12, 1991 SIP submittalStatewide8/20/19918/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated August 26, 1991 withdrawing certain portion of the February 12, 1991 SIP submittalStatewide8/26/19918/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated March 6, 1992 withdrawing certain portion of the February 12, 1991 SIP submittalStatewide3/6/19928/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated May 6, 1992 withdrawing certain portion of the February 12, 1991 SIP submittalStatewide5/6/19928/14/1992, 57 FR 36603See 52.1535(c)(45).
Letter from the New Hampshire Air Resources Division dated May 15, 1992 submitting a revision to the NH SIPStatewide5/15/19921/19/1993, 58 FR 4902See 52.1535(c)(46). Revisions to the SIP consisting of amendments to Emission Control Methods for Cutback and Emulsified Asphalt.
Letter from the New Hampshire Air Resources Division dated May 15, 1992 submitting a revision to the NH SIPStatewide5/15/19925/25/1993, 58 FR 29973See 52.1535(c)(47).
Letter from the New Hampshire Air Resources Division dated December 21, 1992, submitting revisions to the NH SIPStatewide12/21/19924/9/1997, 62 FR 17087See 52.1535(c)(49).
Letter from the New Hampshire Air Resources Division dated June 17, 1994 submitting revisions to the NH SIPStatewide6/17/19944/9/1997, 62 FR 17087See 52.1535(c)(49).
Letter from the New Hampshire Air Resources Division dated July 7, 1995 submitting revisions to the NH SIPStatewide7/7/19954/9/1997, 62 FR 17087See 52.1535(c)(50).
Letter from the New Hampshire Air Resources Division dated September 18, 1995 submitting revisions to the NH SIPStatewide9/18/19954/9/1997, 62 FR 17087See 52.1535(c)(50).
Letter from the New Hampshire Air Resources Division dated October 18, 1995, submitting revisions to the NH SIPStatewide10/18/19954/9/1997, 62 FR 17087See 52.1535(c)(50).
Letter from the New Hampshire Air Resources Division dated December 9, 1996 submitting revisions to the NH SIPGonic, NH12/9/19963/10/1998, 63 FR 11600See 52.1535(c)(51).
Letter from the New Hampshire Air Resources Division dated June 28, 1996 submitting revisions to the NH SIPStatewide6/28/19963/10/1998, 63 FR 11600See 52.1535(c)(51).
Letter from the New Hampshire Air Resources Division dated October 24, 1996 submitting revisions to the NH SIPManchester, NH10/24/19963/10/1998, 63 FR 11600See 52.1535(c)(51).
Letter from the New Hampshire Air Resources Division dated July 10, 1995 submitting revisions to the NH SIPStatewide7/10/19953/10/1998, 63 FR 11600See 52.1535(c)(51).
Letter from the New Hampshire Air Resources Division dated December 21, 1992 submitting revisions to the NH SIPStatewide12/21/19923/10/1998, 63 FR 11600See 52.1535(c)(51).
Letter dated November 21, 1997 withdrawing Env-A 1204.06 from the SIP submittalStatewide11/21/19973/10/1998, 63 FR 11600See 52.1535(c)(51).
NH-DES letter dated December 13, 1994, and signed by Thomas M. Noel, Acting Director, NH DESStatewide12/13/199410/27/1997, 62 FR 55521See 52.1535(c)(52).
State of New Hampshire Photochemical Assessment Monitoring Stations - Network Plan - Network OverviewStatewide12/13/199410/27/1997, 62 FR 55521See 52.1535(c)(52).
Letter from the New Hampshire Air Resources Division dated August 29, 1996 submitting a revision to the NH SIPPortsmouth-Dover-Rochester serious ozone nonattainment area, and the NH portion of the Boston-Lawrence-Worcester serious ozone nonattainment area8/29/199610/27/1997, 62 FR 55521See 52.1533. Revisions to the SIP for the purpose of satisfying the rate-of-progress requirement of section 182(b) and the contingency measure requirement of section 172(c)(9) of the Clean Air Act.
Letter from the New Hampshire Air Resources Division dated April 14, 1997 submitting revisions to the NH SIPStatewide4/14/19975/13/1998, 63 FR 26455See 52.1535(c)(54).
Letter from the New Hampshire Air Resources Division dated May 6, 1997 submitting revisions to the NH SIPNashua, NH5/6/19975/13/1998, 63 FR 26455See 52.1535(c)(54).
Letter from the New Hampshire Air Resources Division dated September 24, 1997 submitting revisions to the NH SIPStatewide9/24/19975/13/1998, 63 FR 26455See 52.1535(c)(54).
Letter from the New Hampshire Air Resources Division dated July 27, 1998 submitting a revision to the NH SIPStatewide7/27/199811/14/2000, 65 FR 68078See 52.1535(c)(57).
Letter from the New Hampshire Air Resources Division dated November 24, 1992 submitting a revision to the New Hampshire State Implementation PlanStatewide11/24/199212/7/1998, 63 FR 67405See 52.1535(c)(58).
New Hampshire Department of Environmental Services "Stage II Equivalency Demonstration," dated November 1992Statewide11/24/199212/7/1998, 63 FR 67405See 52.1535(c)(58).
Nonregulatory portions of the submittalStatewide7/2/199312/7/1998, 63 FR 67405See 52.1535(c)(58). NH's Gasoline Vapor Recovery Testing Procedures and Inspection Manual.
Letter from the New Hampshire Air Resources Division dated November 20, 1998 submitting a revision to the NH SIPStatewide11/20/19981/10/2001, 66 FR 1868See 52.1535(c)(59).
Letter from the New Hampshire Air Resources Division dated September 4, 1998 submitting a revision to the NH SIPStatewide9/4/19981/10/2001, 66 FR 1868See 52.1535(c)(59).
Document entitled "Alternative New Hampshire Motor Vehicle Inspection/Maintenance State Implementation Plan Revision" dated September 4, 1998Statewide9/4/19981/10/2001, 66 FR 1868See 52.1535(c)(59).
Letter from the New Hampshire Air Resources Division dated August 6, 2001 submitting a revision to the NH SIPStatewide8/9/200110/28/2002, 67 FR 65710See 52.1535(c)(60).
Letter from the New Hampshire Air Resources Division dated April 26, 1995 submitting a revision to the NH SIPStatewide4/26/199510/28/2002, 67 FR 65710See 52.1535(c)(60).
Nonregulatory portions of the State submittal.Statewide4/26/199510/28/2002, 67 FR 65710See 52.1535(c)(60).
Document entitled "New Hampshire Stage II Comparability Analysis," prepared by the New Hampshire Department of Environmental Services, dated July 1, 1998Statewide7/9/19989/29/1999, 64 FR 52434.See 52.1535(c)(61).
Letter from the New Hampshire Department of Environmental Services dated June 7, 1994 submitting a revision to the NH SIPStatewide6/7/19949/29/1999, 64 FR 52434.See 52.1535(c)(62).
Document entitled "Clean Fuel Fleet Equivalency Demonstration," prepared by the New Hampshire Department of Environmental Services, dated May, 1994Statewide6/7/19949/29/1999, 64 FR 52434.See 52.1535(c)(62).
Letter from the New Hampshire Department of Environmental Services dated July 10, 1996 submitting a revision to the NH SIPStatewide7/10/19968/16/1999, 64 FR 44417See 52.1535(c)(63).
Letter from the New Hampshire Air Resources Division dated July 17, 1998 submitting Final RACT Order 98-001 as a revision to the NH SIPStatewide7/17/199811/14/2000, 65 FR 68078See 52.1535(c)(64).
Letter from the New Hampshire Department of Environmental Services dated August 16, 1999 submitting the Low Emission Vehicle program as a revision to the NH SIPStatewide8/16/19993/9/2000, 65 FR 12476See 52.1535(c)(65).
Letter from the New Hampshire Air Resources Division dated July 29, 1993 submitting a revision to the New Hampshire State Implementation PlanStatewide7/29/19937/27/2001, 66 FR 39100See 52.1535(c)(66).
Letter from the New Hampshire Air Resources Division dated July 2, 1999 submitting a revision to the New Hampshire State Implementation PlanStatewide7/2/19997/27/2001, 66 FR 39100See 52.1535(c)(66).
Letter from the New Hampshire Department of Environmental Services dated September 11, 1998 stating a negative declaration for the aerospace coating operations Control Techniques Guideline categoryStatewide9/11/19987/10/2000, 65 FR 42290See 52.1535(c)(67).
Letter from the DES, dated April 15, 2002, submitting revised Anheuser-Busch order to EPA as a SIP revision and withdrawing previous submittal for this facility dated June 20, 2000Merrimack, NH4/15/20027/23/2002, 67 FR 48033See 52.1535(c)(68).
Letter from the DES, dated March 22, 2002, containing information on New Filcas of AmericaNashua, NH3/22/20027/23/2002, 67 FR 48033See 52.1535(c)(68).
Submittal to meet Clean Air Act Section 110(a)(2) Infrastructure Requirements for the 1997 8-Hour Ozone National Ambient Air Quality StandardState of New Hampshire1214/20077/8/2011, 76 FR 40248This action addresses the following Clean Air Act requirements: 110(a)(2)(A), (B), (C), (D)(ii), (E), (F), (G), (H), (J), (K), (L), and (M).
New Hampshire Regional Haze SIP and its supplementsStatewide1/29/2010; supplements submitted 1/14/2011, 8/26/20118/22/2012, 77 FR 50607 
Submittal to meet Section 110(a)(2) Infrastructure Requirements for the 1997 PM2.5 NAAQSStatewide4/3/2008; supplement submitted 7/3/201210/16/2012, 77 FR 63228This submittal is approved with respect to the following CAA elements or portions thereof: 110(a)(2)(B), (C) (enforcement program only), (D)(i)(I), (D)(ii), (E)(i), (E)(iii), (F), (G), (H), (J) (consultation and public notification only), (K), (L), and (M).
Submittal to meet Section 110(a)(2) Infrastructure Requirements for the 2006 PM2.5 NAAQSStatewide9/18/2009; supplement submitted 7/3/201210/16/2012, 77 FR 63228This submittal is approved with respect to the following CAA elements or portions thereof: 110(a)(2)(B), (C) (enforcement program only), (D)(i)(I), (D)(ii), (E)(i), (E)(iii), (F), (G), (H), (J) (consultation and public notification only), (K), (L), and (M).
Negative Declarations included in New Hampshire's State Implementation Plan Revision for the 2006, 2007, and 2008 Control Techniques GuidelinesStatewide7/26/201111/8/2012, 77 FR 66921Includes negative declarations for the following CTG categories: Large appliance coatings; and automobile and light-duty truck assembly coatings.
Certification for RACT for the 1997 8-Hour Ozone StandardStatewide1/28/200811/5/2012, 77 FR 66388New Hampshire submitted documentation that RACT requirements were in place for sources of VOC and NOX for purposes of the 1997 8-hour ozone standard.
SIP Narrative associated with New Hampshire Vehicle Inspection and Maintenance Program SIP RevisionStatewide11/17/20111/25/2013, 78 FR 5292 
Infrastructure SIP for 2008 ozone NAAQSStatewide12/31/20125/25/2017, 82 FR 24057Items that were conditionally approved on 12/16/2015 are now fully approved.
Infrastructure SIP for the 2008 Lead NAAQSStatewide11/7/20115/25/2017, 82 FR 24057Items that were conditionally approved on 12/16/2015 are now fully approved.
Infrastructure SIP for the 2010 NO2 NAAQSStatewide1/28/20135/25/2017, 82 FR 24057Items that were conditionally approved on 12/16/2015 are now fully approved.
Infrastructure SIP for the 2010 SO2 NAAQSStatewide7/13/20135/25/2017, 82 FR 24057Items that were conditionally approved on 7/8/2016 are now fully approved.
Infrastructure SIP for the 1997 PM2.5 NAAQSStatewide7/3/20125/25/2017, 82 FR 24057Items that were conditionally approved on 12/16/2015 are now fully approved.
Infrastructure SIP for 2006 PM2.5 NAAQSStatewide9/18/20095/25/2017, 82 FR 24057Items that were conditionally approved on 12/16/2015 are now fully approved.
Request for exemption from contingency plan obligationMerrimack Valley - Southern New Hampshire AQCR12/31/201212/16/2015, 80 FR 78139State's request for exemption from contingency plan obligation, made pursuant to 40 CFR 51.122(d), is granted in light of the area's designation as unclassifiable/attainment for the 2008 ozone NAAQS.
Regional Haze Five-Year Progress ReportStatewide12/16/201410/6/2016, 81 FR 70361 
Transport SIP for the 2008 Ozone StandardStatewideSubmitted
11/7/2015
10/13/2016, 81 FR 70632State submitted a transport SIP for the 2008 ozone standard which shows it does not significantly contribute to ozone nonattainment or maintenance in any other state. EPA approved this submittal as meeting the requirements of Clean Air Act Section 110(a)(2)(D)(i)(I).
Transport SIP for the 1997 Ozone StandardStatewideSubmitted 3/11/20084/10/2017, 82 FR 17124State submitted a transport SIP for the 1997 ozone standards which shows it does not significantly contribute to ozone nonattainment or maintenance in any other state. EPA approved this submittal as meeting the requirements of Clean Air Act Section 110(a)(2)(D)(i)(I).
Transport SIP for the 2010 NO2 StandardStatewide11/17/20155/25/2017, 82 FR 24057 
Central New Hampshire Nonattainment Area Plan for the 2010 Primary 1-Hour Sulfur Dioxide NAAQSCentral New Hampshire SO2 Nonattainment Area1/31/20176/5/2018, 83 FR 25922 
Submittals to meet Section 110(a)(2) Infrastructure Requirements for the 2012 PM2.5 NAAQSStatewide12/22/2015; supplement submitted 6/8/201612/4/2018, 83 FR 62464These submittals are approved with respect to the following CAA requirements: 110(a)(2)(A), (B), (C), (D), (E), (F), (G), (H), (J), (L), and (M).
  12/22/201510/26/2020, 85 FR 67651This submittal is conditionally approved with respect to provisions of CAA 110(a)(2)(K). The following previously approved items are corrected and changed from approval to conditional approval: 110(a)(C) (PSD only), (D)(i)(II) (prong 3 only), and (J) (PSD only).
  4/20/20215/6/2022, 87 FR 26999Items that were conditionally approved on 10/26/2020 are now fully approved.
Amendment to New Hampshire 2010 Sulfur Dioxide NAAQS Infrastructure SIP to Address the Good Neighbor Requirements of Clean Air Act Section 110(a)(2)(D)(i)(I)Statewide6/16/201712/17/2018, 83 FR 64470 
1-Hour Sulfur Dioxide (2010 Standard) Redesignation Request and Maintenance Plan for the Central New Hampshire Nonattainment AreaCentral New Hampshire SO2 Nonattainment Area3/16/20189/20/2019, 84 FR 49467The maintenance plan for the 2010 SO2 NAAQS is Section 6 of this submittal.
Negative declaration for the 2016 Control Techniques Guidelines for the Oil and Natural Gas IndustryStatewide12/20/20197/13/2020, 85 FR 41920Negative declaration.
Submittal to meet Section 110(a)(2) Infrastructure Requirements for the 2015 Ozone NAAQSStatewide4/20/20215/6/2022, 87 FR 26999Items that were conditionally approved on 10/26/2020 are now fully approved.
Request for exemption from contingency plan obligation for 2015 ozone NAAQSMerrimack Valley - Southern New Hampshire AQCR9/5/201810/26/2020, 85 FR 67651State's request for exemption from contingency plan obligation, made pursuant to 40 CFR 51.152(d)(1), is granted.
Boston-Manchester-Portsmouth Area Second 10-Year Limited Maintenance Plan for 1997 Ozone NAAQSBoston-Manchester-Portsmouth Maintenance Area7/29/20214/22/2022, 87 FR 24058Approval for 2nd 10-year LMP for 1997 ozone NAAQS.
Letter from New Hampshire and attachment G AmendmentBoston-Manchester-Portsmouth Maintenance Area12/23/20214/22/2022, 87 FR 24058Supplemental information for 2nd 10-year LMP for 1997 ozone NAAQS.
Certifications for RACT for the 2008 and 2015 ozone standards.Statewide09/06/201809/06/2023
88 FR 60893 and 04/30/2024
89 FR 34137
RACT certifications for stationary sources of VOC and NOX approved for purposes of the 2008 and 2015 ozone standards. NOX RACT requirements pertaining to coalfired cyclone boilers approved 04/30/2024.
Negative declarations included in New Hampshire’s State Implementation Plan for purposes of the 2008 and 2015 ozone standards.Statewide09/06/201809/06/2023
88 FR 60893
Negative declarations submitted for 26 CTG categories listed within Table 5–3 of the New Hampshire document ‘‘Certification of Reasonably Available Control Technology for the 2008 and 2015 8-hour Ozone National Ambient Air Quality Standards’’, dated August 21, 2018.
New Hampshire Regional Haze Plan Periodic Comprehensive Revision for 2nd planning period 2018–2028.Statewide05/06/202211/07/2024
89 FR 88139
Approves full plan including supplemental submission containing updated Appendix W.

[74 FR 50120, Sept. 30, 2009, as amended at 76 FR 40257, July 8, 2011; 76 FR 49672, Aug. 11, 2011; 77 FR 5702, Feb. 6, 2012; 77 FR 50607, 77 FR 50610, Aug. 22, 2012; 77 FR 63233, Oct. 16, 2012; 77 FR 66395, Nov. 5, 2012; 77 FR 66926, Nov. 8, 2012; 78 FR 5302, Jan. 25, 2013; 78 FR 71507, Nov. 29, 2013; 79 FR 20099, Apr. 11, 2014; 79 FR 30736, May 29, 2014; 79 FR 35699, June 24, 2014; 79 FR 49462, Aug. 21, 2014; 80 FR 57724, Sept. 25, 2015; 80 FR 78139, Dec. 16, 2015; 81 FR 44553, July 8, 2016; 81 FR 53928, Aug. 15, 2016]; 81 FR 59141, Aug. 29, 2016; 81 FR 70361, Oct. 12, 2016; 81 FR 70632, Oct. 13, 2016; 81 FR 78054, Nov. 7, 2016; 82 FR 17126, April 10, 2017; 82 FR 24061, May 25, 2017; 83 FR 6975, February 16, 2018; 83 FR 13671, March 30, 2018; 83 FR 25935, June 5, 2018; 83 FR 45356, September 7, 2018; 83 FR 48387, September 25, 2018; 83 FR 62465, December 4, 2018; 83 FR 64472, December 17, 2018; 84 FR 48071, September 12, 2019; 84 FR 49469, September 20, 2019; 85 FR 39491, July 1, 2020; 85 FR 41922, July 13, 2020; 85 FR 67653, October 26, 2020; 86 FR 21944, April 26, 2021; 87 FR 13636, March 10,2022; 87 FR 24060, April 22, 2022; 87 FR 27001, May 6, 2022; 87 FR 49528, August 11, 2022]

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