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e-CFR Data is current as of February 4, 2010

Title 40: Protection of Environment
PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES
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

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§ 86.244-94   Calculations; exhaust emissions.

The provisions of §86.144–94 apply to this subpart, except that NO_Xmeasurements are optional. Should NO_Xmeasurements 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, NO_X, and CO₂in grams per vehicle mile.

[71 FR 77926, Dec. 27, 2006; 72 FR 7921, Feb. 21, 2007]

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