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Emission Standards Reference Guide

Light-Duty Vehicle, Light-Duty Truck, and Medium-Duty Passenger Vehicle -- Tier 2 Evaporative Emission Standards

Vehicle Type Model Year 3 day Diurnal + Hot Soak
(g/test)
Supplemental
2 day Diurnal + Hot Soak
(g/test)
Running Loss
(g/mi)
Federal LDV/LLDTsa 2004 0.95 1.20 0.05
HLDTsb 2004 1.20 1.50 0.05
MDPVsa, b 2004 1.40 1.75 0.05
LDVa 2009 0.50 0.65 0.05
LLDTa 2009 0.65 0.85 0.05
HLDTb 2010 0.90 1.15 0.05
MDPVa, b 2010 1.00 1.25 0.05

 

Notes:

Multi-fuel vehicle phase-in applies.

In-use phase-in applies.

a  For liquefied petroleum gas-fueled light-duty vehicles (LDV), light-duty trucks (LDT), and medium-duty passenger vehicles (MDPV): 0.15 grams hydrocarbon per gallon (0.04 grams per liter) of fuel dispensed.

b  Refueling standards for heavy light-duty trucks (HLDT) are subject to phase-in requirements. MDPVs must also comply with the phase-in requirement and must be grouped with HLDTs to determine phase-in compliance.

Code of Federal Regulations (CFR) Citations:

  • 40 CFR 86 Subpart S
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