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Code of Federal Regulations (Last Updated: April 5, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter C - Air Programs |
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Part 86 - Control of Emissions from New and in-Use Highway Vehicles and Engines |
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Subpart C - Emission Regulations for 1994 and Later Model Year Gasoline-Fueled New Light-Duty Vehicles, New Light-Duty Trucks and New Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures |
§ 86.244-94 - Calculations; exhaust emissions.
Latest version.
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The provisions of §86.144-94 apply to this subpart, except that NOX measurements are optional. Should NOX measurements be calculated, note that the humidity correction factor is not valid at colder temperatures. Light-duty vehicles and light-duty trucks must calculate and report the weighted mass of each relevant pollutant, i.e., THC, CO, THCE, NMHC, NMHCE, CH4, NOX, and CO2 in grams per vehicle mile.
[71 FR 77926, Dec. 27, 2006; 72 FR 7921, Feb. 21, 2007]