Ill. Admin. Code tit. 35, § 241.APPENDIX A
Section 241.TABLE D Emission Standards for Model Year 1998 and Later Heavy-Duty Vehicles (g/bhp-hr)
| VEHICLE TYPE | THC | NOX | NMHC + NOX | CO | PM1 | OMHCE | HCHO |
| GASOLINE ≤ 14,000 GVWR | 1.1 | 4.0 | --- | 14.4 | --- | 1.1 | --- |
| GASOLINE > 14,000 GVWR | 1.9 | 4.0 | --- | 37.1 | --- | 1.9 | --- |
| DIESEL | 1.3 | 4.0 | --- | 15.5 | 0.10 | 1.3 | --- |
| LEV CERTIFIED FUEL | 2 | 2 | 3.8 | 2 | 2 | 2 | --- |
| LEV CERTIFIED CALIF. FUEL | 2 | 2 | 3.5 | 2 | 2 | 2 | --- |
| ULEV | 2 | 2 | 2.5 | 7.2 | 0.05 | 2 | 0.025 |
| ILEV | 2 | 2 | 2.5 | 14.4 | 0.10 | 2 | 0.025 |
1Standards for particulate matter (PM) apply only to diesel-fueled vehicles.
2HD CFVs must meet conventional vehicle standards for THC, NOx, CO, PM, and OMHCE