{"data":{"id":"us/40-cfr-table-1-to-subpart-jjjj-of-part-60","jurisdiction":"us","citation":"40 CFR Table 1 to Subpart JJJJ of Part 60","heading":"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 \u003e25 HP","body":"Engine type and fuel Maximum engine power Manufacture date Emission standards a\ng/HP-hr ppmvd at 15% O2\nNOX CO VOC d NOX CO VOC d\nNon-Emergency SI Natural Gas b and Non-Emergency SI Lean Burn LPG b 100≤HP\u003c500 7/1/2008 2.0 4.0 1.0 160 540 86\n1/1/2011 1.0 2.0 0.7 82 270 60\nNon-Emergency SI Lean Burn Natural Gas and LPG 500≤HP\u003c1,350 1/1/2008 2.0 4.0 1.0 160 540 86\n7/1/2010 1.0 2.0 0.7 82 270 60\nNon-Emergency SI Natural Gas and Non-Emergency SI Lean Burn LPG (except lean burn 500≤HP\u003c1,350) HP≥500 7/1/2007 2.0 4.0 1.0 160 540 86\nHP≥500 7/1/2010 1.0 2.0 0.7 82 270 60\nLandfill/Digester Gas (except lean burn 500≤HP\u003c1,350) HP\u003c500 7/1/2008 3.0 5.0 1.0 220 610 80\n1/1/2011 2.0 5.0 1.0 150 610 80\nHP≥500 7/1/2007 3.0 5.0 1.0 220 610 80\n7/1/2010 2.0 5.0 1.0 150 610 80\nLandfill/Digester Gas Lean Burn 500≤HP\u003c1,350 1/1/2008 3.0 5.0 1.0 220 610 80\n7/1/2010 2.0 5.0 1.0 150 610 80\nEmergency 25\u003cHP\u003c130 1/1/2009 c 10 387 N/A N/A N/A N/A\nHP≥130 2.0 4.0 1.0 160 540 86\na 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.\nb 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.\nc The emission standards applicable to emergency engines between 25 HP and 130 HP are in terms of NOX + HC.\nd For purposes of this subpart, when calculating emissions of volatile organic compounds, emissions of formaldehyde should not be included.","path":["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"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"af852946a85d574a2db24498766c9648c7dbc4d368d8ee379ce14f836eebe103","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-60.4248","next":"us/40-cfr-table-2-to-subpart-jjjj-of-part-60"},"notice":"GroundRules: Original legal text. Not legal advice."}