| |
Table 4.1 |
US Federal Emission Standards for Passenger Cars, g/mile |
| Year |
NMOG/ NMHC
|
CO |
NOx |
PM (1) |
HCHO(2) |
Evap. g/test
|
| US Federal |
|
|
|
|
|
|
| Pre-control (1966) |
15 (3) |
90 |
6.2 |
|
|
6.0 |
| 1975 |
1.5 (3) |
15 |
3.1 |
|
|
2.0 (4) |
| 1981 |
0.41 (3) |
3.4 |
1.0 |
|
|
2.0 (5) |
Tier1(6) , 1994 |
|
|
|
|
|
(7) |
Gasoline |
0.25(0.31) |
3.4 (4.2) |
0.4 (0.6) |
- |
|
|
| Diesel |
0.25(0.31) |
3.4 (4.2) |
1.0 (1.25) |
0.08 (0.10) |
|
|
| Tier2 (8) , 2004 -2009 |
0.125 |
1.7 |
0.2 |
0.02 |
0.018 |
(7) |
| NMHC/NMOG = Non-methane hydrocarbons or organic gases |
(1)
For diesel vehicles only (2) for alcohol fueled vehicles only (3) Total hydrocarbons (4) Carbon canister trap method (5) SHED (Sealed Housing Evaporative Determination) technique, the 6.0 g/test limit represents about 70 % less than 2.0 g/test by carbon trap method (6) values in parentheses for full useful life equal to 100,000 miles, (7) new limits (8) To be phased in between 2004-2009,limits for all types of light duty vehicles GVW<8500 lbs at the end of full useful life 120,000 miles. Eight different emission categories called ‘bins' in the given range to which vehicles can be certified and average NOx of the total fleet of a manufacturer not more than 0.07 g/mile.
Table 4.2 |
California Emission Standards for Passenger Cars, g/mile (1) |
| Year |
NMOG/ NMHC |
CO |
NOx |
PM (1) |
HCHO (2) |
Evap. g/test |
| TLEV, 1996 |
0.125 (0.156) |
3.4 (4.2) |
0.4 (0.6) |
(0.08) |
0.015 (0.018) |
2.0 |
| LEV, 2000 |
0.075 (0.090) |
3.4 (4.2) |
0.2 (0.3) |
(0.08) |
0.015 (0.018) |
2.0 |
| ULEV, 2001 |
0.04 (0.055) |
1.7 (2.1) |
0.2(0.3) |
(0.04) |
0.015 (0.018) |
2.0 |
| LEV 2, 2004 |
0.075(0.090 |
3.4 (4.2) |
0.05 (0.07) |
(0.01) |
0.015 (0.018) |
2.0 |
| ULEV2,2004 |
0.040(0.055) |
1.7(2.1) |
0.05(0.07) |
(0.01) |
0.008 (0.011) |
2.0 |
| SULEV2, 2004 |
(0.010) |
(1.0) |
(0.02) |
(0.01) |
(0.004) |
2.0 |
| PZEV (2) |
0.010 |
1.0 |
0.02 |
0.01 |
0.004 |
|
| (1) Limits in parentheses at the end of durability run for 100,000 miles and from the year 2004 at 120,000 miles. (2) Partial zero emission vehicles (PZEV) limits are for 150,000 miles durability. |
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