We use these websites in the course of our research. Browse the resources below to familiarize yourself with state and national regulations.
| Air Permit | Stormwater | SPCC Plans |
| IDEM Air Permit Page | IDEM Stormwater Page | SPCC Rules |
| IDEM Air Permit Search | Ohio Stormwater Page | |
| EPA Region 5 Air Permits | Soil Maps | |
| HAPs List by CAS and Alpha | Stormwater All States | |
| EPCRA Sites | ||
| TIER II (312) | ||
| Form R (313) | ||
| TIER II All States | ||
