RHODE Island
RHODE ISLAND EMISSION STANDARDS - RI2000 TEST
| Application |
HC gpm (CO gpm) |
NOx gpm |
| Light Duty Vehicles |
| 1974 & Earlier |
15.92 (132.44) |
14.92 |
| 1975-76 |
6.74 (96.21) |
9.92 |
| 1977-79 |
6.74 (96.21) |
6.59 |
| 1980 |
2.25 (45.48) |
6.59 |
| 1981-82 |
2.25 (45.48) |
3.25 |
| 1983-95 |
2.25 (23.74) |
3.25 |
| 1996 & Newer |
1.84 (16.50) |
2.42 |
| Light Duty Trucks (6000 GVWR Or Less) |
| 1975 & Earlier |
16.94 (175.92) |
14.92 |
| 1975-78 |
8.78 (117.95) |
9.92 |
| 1979-83 |
7.55 (103.45) |
7.42 |
| 1984-87 |
3.88 (59.97) |
7.42 |
| 1988-90 |
3.88 (59.97) |
4.09 |
| 1991-95 |
3.88 (59.97) |
4.09 |
| 1996 & Newer (3750 LVW Or Less) |
1.84 (16.50) |
2.42 |
| 1996 & Newer (3751 LVW Or More) |
2.25 (20.84) |
2.92 |
| Light Duty Trucks (6001-8500 GVWR) |
| 1974 & Earlier |
16.94 (175.92) |
14.92 |
| 1975-78 |
8.78 (117.95) |
9.92 |
| 1979-83 |
7.55 (103.45) |
7.42 |
| 1984-87 |
3.88 (59.97) |
7.42 |
| 1989-90 |
3.88 (59.97) |
5.75 |
| 1991-95 |
3.88 (59.97) |
5.75 |
| 1996 & Newer (5750 LVW Or Less) |
2.25 (20.84) |
2.92 |
| 1996 & Newer (5751 LVW or More) |
5.51 (23.74) |
3.25 |
RHODE ISLAND EMISSION STANDARDS - 2-SPEED IDLE TEST
| Application Idle |
HC ppm (CO %) |
| 1967 & Earlier |
800 (7.0) |
| 1968-74 |
700 (6.0) |
| 1975-78 |
300 (3.0) |
| 1979-80 |
300 (2.5) |
| 1981 & Newer |
220 (1.2) |