State Emission Standards - Gas: TENNESSEE
TENNESSEE EMISSION STANDARDS - MEMPHIS - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (9000 GVWR Or Less) | ||
| 1971 & Older | 900 (8.9) | |
| 1972-74 | 700 (8.2) | |
| 1975-79 | 600 (7.5) | |
| 1980 | 400 (4.7) | |
| 1981 & Newer | 220 (1.2) | |
| Heavy Duty Trucks (9001-25, 999 GVWR) | ||
| 1971 & Older | 1000 (8.9) | |
| 1972-74 | 1000 (8.2) | |
| 1975-79 | 1000 (8.0) | |
| 1980 | 800 (6.0) | |
| 1981 & Newer | 400 (4.0) | |
TENNESSEE EMISSION STANDARDS - DAVIDSON & NASHVILLE COUNTIES - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (6000 GVWR Or Less) | ||
| 1975-77 | 500 (5.0) | |
| 1978-79 | 400 (4.0) | |
| 1980 | 300 (3.0) | |
| 1981 & Newer | 220 (1.2) | |
| Medium Duty Trucks (6001-8500 GVWR) | ||
| 1975-77 | 750 (6.5) | |
| 1978-79 | 600 (6.0) | |
| 1980 | 400 (4.5) | |
| 1981 & Newer | 400 (4.0) | |
TENNESSEE EMISSION STANDARDS - FOUR COUNTY AREA SURROUNDING NASHVILLE - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (6000 GVWR Or Less) | ||
| 1975-77 | 500 (5.0) | |
| 1978-79 | 400 (4.0) | |
| 1980 | 300 (3.0) | |
| 1981 & Newer | 220 (1.2) | |
| Medium Duty Trucks (6001-8500 GVWR) | ||
| 1975-77 | 750 (6.5) | |
| 1978-79 | 600 (6.0) | |
| 1980 | 400 (4.5) | |
| 1981 & Newer | 400 (4.0) | |