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District Of COLUMBIA
DISTRICT OF COLUMBIA EMISSION STANDARDS - IDLE TEST
| Application |
HC ppm (CO %) |
| Light Duty Vehicles & Trucks (26000 GVWR Or Less) |
| 1968-70 |
1250 (11.0) |
| 1971-74 |
1200 (9.0) |
| 1975-79 |
600 (6.5) |
| 1980 |
300 (1.5) |
| 1981 & Newer |
220 (1.2) |