{"data":{"id":"us/40-cfr-1048.805","jurisdiction":"us","citation":"40 CFR 1048.805","heading":"What symbols, acronyms, and abbreviations does this part use?","body":"The following symbols, acronyms, and abbreviations apply to this part:\n°C degrees Celsius.\nASTM American Society for Testing and Materials.\ncc cubic centimeters.\nCFR Code of Federal Regulations.\nCH4 methane.\ncm centimeter.\nCO carbon monoxide.\nCO2 carbon dioxide.\nEPA Environmental Protection Agency.\ng/kW-hr grams per kilowatt-hour.\nHC hydrocarbon.\nISO International Organization for Standardization.\nkPa kilopascals.\nkW kilowatts.\nLPG liquefied petroleum gas.\nm meters.\nMIL malfunction-indicator light.\nmm Hg millimeters of mercury.\nN2O nitrous oxide.\nNARA National Archives and Records Administration.\nNMHC nonmethane hydrocarbons.\nNOX oxides of nitrogen (NO and NO2).\npsi pounds per square inch of absolute pressure.\npsig pounds per square inch of gauge pressure.\nrpm revolutions per minute.\nSAE Society of Automotive Engineers.\nSI spark-ignition.\nTHC total hydrocarbon.\nTHCE total hydrocarbon equivalent.\nU.S.C. United States Code.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER U—AIR POLLUTION CONTROLS","PART 1048—CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES","Subpart I—Definitions and Other Reference Information"],"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":"df21ec78159f9bd27ec7dde7acfd787f5fc8c6f0e8cb7751bd714d0633956d84","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1048.801","next":"us/40-cfr-1048.810"},"notice":"GroundRules: Original legal text. Not legal advice."}