Emission Standards Reference Guide
Light-Duty Vehicle, Light-Duty Truck, and Medium-Duty Passenger Vehicle -- Tier 2 Exhaust Emission Standards
| Standard | Emission Limits at 50,000 miles | Emission Limits at Full Useful Life (120,000 miles)2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx (g/mi) |
NMOG (g/mi) |
CO (g/mi) |
PM (g/mi) |
HCHO (g/mi) |
NOx (g/mi) |
NMOG (g/mi) |
CO (g/mi) |
PM (g/mi) |
HCHO (g/mi) |
||
| Federal | Bin 1 | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 |
| Bin 2 | - | - | - | - | - | 0.02 | 0.01 | 2.1 | 0.01 | 0.004 | |
| Bin 3 | - | - | - | - | - | 0.03 | 0.055 | 2.1 | 0.01 | 0.011 | |
| Bin 4 | - | - | - | - | - | 0.04 | 0.07 | 2.1 | 0.01 | 0.011 | |
| Bin 5 | 0.05 | 0.075 | 3.4 | - | 0.015 | 0.07 | 0.09 | 4.2 | 0.01 | 0.018 | |
| Bin 6 | 0.08 | 0.075 | 3.4 | - | 0.015 | 0.1 | 0.09 | 4.2 | 0.01 | 0.018 | |
| Bin 7 | 0.11 | 0.075 | 3.4 | - | 0.015 | 0.15 | 0.09 | 4.2 | 0.02 | 0.018 | |
| Bin 8 | 0.14 | 0.100 / 0.125c | 3.4 | - | 0.015 | 0.2 | 0.125 / 0.156 | 4.2 | 0.02 | 0.018 | |
| Bin 9b | 0.2 | 0.075 / 0.140 | 3.4 | - | 0.015 | 0.3 | 0.090 / 0.180 | 4.2 | 0.06 | 0.018 | |
| Bin 10b | 0.4 | 0.125 / 0.160 | 3.4 / 4.4 | - | 0.015 / 0.018 | 0.6 | 0.156 / 0.230 | 4.2 / 6.4 | 0.08 | 0.018 / 0.027 | |
| Bin 11b | 0.6 | 0.195 | 5 | - | 0.022 | 0.9 | 0.28 | 7.3 | 0.12 | 0.032 | |
| Notes: | ||
|---|---|---|
| Tests Covered: | Federal Test Procedure (FTP), cold carbon monoxide, highway, and idle | |
| Model Year: | 2004+ | |
a In lieu of intermediate useful life standards (50,000 miles) or to gain additional nitrogen oxides credit, manufacturers may optionally certify to the Tier 2 exhaust emission standards with a useful life of 150,000 miles.
b Bins 9-11 expire in 2006 for light-duty vehicles and light light-duty trucks and 2008 for heavy light-duty trucks and medium-duty passenger vehicles.
c Pollutants with two numbers have a separate certification standard (1st number) and in-use standard (2nd number).
Implementation Schedule
| Vehicle Category | NOx avg. / cap (g/mi)a | Model Year | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | |||
| Federal | LDV, LLDT | 0.3 / - | 75% | 50% | 25% | 0% | - | - | - |
| 0.07 / - | 25% | 50% | 75% | 0% | - | - | - | ||
| 0.07 / 0.2 | - | - | - | 100% | 100% | 100% | 100% | ||
| HLDT, MDPV | - / 0.6 | 75% | 50% | 25% | 0% | - | - | - | |
| 0.02 / - | 25% | 50% | 75% | 100% | 50% | 0% | - | ||
| 0.07 / - | - | - | - | - | 50% | 0% | - | ||
| 0.07 / 0.2 | - | - | - | - | - | 100% | 100% | ||
Notes:
a At full useful life (120,000 miles).
Code of Federal Regulations (CFR) Citations:
- 40 CFR 86 Subpart S