| Subject | Counties Served |
| Groundwater Environmental Monitoring System (GEMS) Application | Statewide |
| Landfill Design and Construction | Statewide |
| Landfill Fees | Statewide |
| Landfill Gas and Leachate | Statewide |
| Landfill Operation | Statewide |
| Landfills, Active | Statewide |
| Landfills, Closed | Statewide |
| Landfills, Feasibility and Siting Requirements | Statewide |