| Terry Harrmann | Alliant Energy Corporation | Undecided | GA83 |
| Lyle Krewson | IA. Chapter of Sierra Club | Undecided | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA83 |
| Jim Obradovich | IA. Environmental Council | Supporting | GA83 |
| Leland Searles | IA. Environmental Council | Supporting | GA83 |
| Lynn Laws | IA. Environmental Council | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Opposing | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Opposing | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Opposing | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| Jim Obradovich | IA. Recycling Assn. | Supporting | GA83 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Supporting | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Supporting | GA83 |
| Julie Smith | Metro Waste Authority | Supporting | GA83 |
| Larry Pope | Metro Waste Authority | Supporting | GA83 |
| Ned Chiodo | Metro Waste Authority | Supporting | GA83 |
| Mike Heller | Waste Management, Inc. | Supporting | GA83 |
| Paula Feltner | Waste Management, Inc. | Supporting | GA83 |