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 Code of Federal Regulations (Last Updated: November 8, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter C - Air Programs
 Part 60 - Standards of Performance for New Stationary Sources
 Subpart JJJJ - Standards of Performance for Stationary Spark Ignition Internal Combustion Engines

  Table 1 to Subpart JJJJ of Part 60 - NOX, CO, and VOC Emission Standards for Stationary Non-Emergency SI Engines =100 HP (Except Gasoline and Rich Burn LPG), Stationary SI Landfill/Digester Gas Engines, and Stationary Emergency Engines >25 HP

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  • Table 1 to Subpart JJJJ of Part 60 - NOX, CO, and VOC Emission Standards for Stationary Non-Emergency SI Engines ≥100 HP (Except Gasoline and Rich Burn LPG), Stationary SI Landfill/Digester Gas Engines, and Stationary Emergency Engines >25 HP

    Engine type
    and fuel     		Maximum
    engine power     		Manufacture
    date     		Emission standardsa
    g/HP-hr ppmvd at 15% O2
    NOX CO VOCd NOX CO VOCd
    Non-Emergency SI Natural Gasb and Non-Emergency SI Lean Burn LPGb 100≤HP<500 7/1/2008 2.0 4.0 1.0 160 540 86
    1/1/2011 1.0 2.0 0.7 82 270 60
    Non-Emergency SI Lean Burn Natural Gas and LPG 500≤HP<1,350 1/1/2008 2.0 4.0 1.0 160 540 86
    7/1/2010 1.0 2.0 0.7 82 270 60
    Non-Emergency SI Natural Gas and Non-Emergency SI Lean Burn LPG (except lean burn 500≤HP<1,350) HP≥500 7/1/2007 2.0 4.0 1.0 160 540 86
    HP≥500 7/1/2010 1.0 2.0 0.7 82 270 60
    Landfill/Digester Gas (except lean burn 500≤HP<1,350) HP<500 7/1/2008 3.0 5.0 1.0 220 610 80
    1/1/2011 2.0 5.0 1.0 150 610 80
    HP≥500 7/1/2007 3.0 5.0 1.0 220 610 80
    7/1/2010 2.0 5.0 1.0 150 610 80
    Landfill/Digester Gas Lean Burn 500≤HP<1,350 1/1/2008 3.0 5.0 1.0 220 610 80
    7/1/2010 2.0 5.0 1.0 150 610 80
    Emergency 25<HP<130 1/1/2009 c 10 387 N/A N/A N/A N/A
    HP≥130 2.0 4.0 1.0 160 540 86

    a Owners and operators of stationary non-certified SI engines may choose to comply with the emission standards in units of either g/HP-hr or ppmvd at 15 percent O2.

    b Owners and operators of new or reconstructed non-emergency lean burn SI stationary engines with a site rating of greater than or equal to 250 brake HP located at a major source that are meeting the requirements of 40 CFR part 63, subpart ZZZZ, Table 2a do not have to comply with the CO emission standards of Table 1 of this subpart.

    c The emission standards applicable to emergency engines between 25 HP and 130 HP are in terms of NOX + HC.

    d For purposes of this subpart, when calculating emissions of volatile organic compounds, emissions of formaldehyde should not be included.

    [76 FR 37975, June 28, 2011]