oEPA
United States
Environmental Protection
Agency
Office of Transportation and Air Quality
             EPA-420-B-16-013
                  March 2016
                      Light-Duty Vehicles, Light-Duty Trucks, and Medium-Duty
                   Passenger Vehicles: Tier 2 and Interim Non-Tier 2 Supplemental
                     Federal Test Procedure (SFTP) Exhaust Emission Standards

Federal a
Vehicle Type
LDV/LDT1
LDT2
LDT3
LDT4
4,000 Miles
US06 TEST
NMHC+NOx
(g/mi)
0.14
0.25
0.40
0.60
CO
(g/mi)
8.0
10.5
10.5
11.8
SC03 TEST
NMHC+NOx
(g/mi)
0.20
0.27
0.31
0.44
CO
(g/mi)
2.7
3.5
3.5
4.0
                   Notes:
                       Manufacturers must calculate their applicable full useful life Supplemental
                       Federal Test Procedure standards for non-methane hydrocarbon plus
                       nitrogen oxides, particulate matter, and carbon monoxide (CO), if using
                       the weighted CO standard. If not using the weighted CO standard,
                       manufacturers may use the full useful life stand-alone Tier 1 standards
                       for US06 and SC03.
                   Code of Federal Regulations (CFR) citations:

                   •   40 CFR 86 Subpart S

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