Ill. Admin. Code tit. 35, § 216.130
| Agency | Illinois Environmental Protection Agency |
| ARRA | American Recovery and Reinvestment Act |
| CMAQ | Congestion Mitigation and Air Quality Improvement Program |
| DERA | Diesel Emissions Reduction Act |
| GVWR | gross vehicle weight rating |
| ICDGP | Illinois Clean Diesel Grant Program |
| SEP | supplemental environmental project |
| State | State of Illinois |
| USEPA | United States Environmental Protection Agency |