State Emission Standards - Gas: MISSOURI
MISSOURI EMISSION STANDARDS - JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - IM240 TEST
| Application |
HC gpm (CO gpm) |
NOx gpm |
| Light Duty Vehicles (6000 GVWR Or Less) |
| 1981-82 |
0.80 (30.0) |
2.0 |
| 1983-95 |
0.80 (15.0) |
2.0 |
| 1996 & Newer |
0.60 (10.0) |
1.5 |
| Light Duty Trucks (6000 GVWR Or Less) |
| 1981-83 |
3.40 (70.0) |
4.5 |
| 1984-87 |
1.60 (40.0) |
4.5 |
| 1988-95 |
1.60 (40.0) |
2.5 |
| 1996 & Newer (Less Than 3750 LVW) |
0.80 (13.0) |
1.8 |
| 1996 & Newer (3750 LVW Or Less) |
0.60 (10.0) |
1.5 |
| Light Duty Trucks (6001-8500 GVWR) |
| 1981-83 |
3.4 (70.0) |
4.5 |
| 1984-87 |
1.6 (40.0) |
4.5 |
| 1988-95 |
1.60 (40.0) |
3.5 |
| 1996 & Newer (5750 ALVW Or Less) |
0.80 (13.0) |
1.8 |
| 1996 & Newer (5750 ALVW Or More) |
0.80 (15.0) |
2.0 |
MISSOURI EMISSION STANDARDS - FRANKLIN, JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - IDLE TEST
| Application |
HC ppm (CO %) |
| 1971-74 |
700 (7.0) |
| 1975-79 |
600 (6.0) |
| 1980 |
300 (3.0) |
| 1981 & Newer |
220 (1.2) |
MISSOURI EMISSION STANDARDS - FRANKLIN, JEFFERSON, ST. CHARLES & ST. LOUIS COUNTIES - REMOTE SENSING CLEAN SCREEN TEST
| Application |
HC ppm (CO %) |
NOx ppm |
| All Vehicles (8500 GVWR Or Less) |
| 1971 & Newer |
200 (0.5) |
2000 |