October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
State Emission Standards - Diesel: IDAHO
IDAHO EMISSION STANDARDS - DIESEL OPACITY
| Application |
Opacity % |
| All Weight Range |
| 1965-74 |
70 |
| 1975-91 |
55 |
| 1992 & Newer |
40 |