Ohio regulations
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- OAC 3745-525-105 - Location restriction demonstration - unstable areas, 40 C.F.R. 257.64.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-105 establishes location restriction demonstration requirements for coal ash disposal in unstable areas under federal 40 C.F.R. 257.64; filed April 28, 2026.
- OAC 3745-525-201 - Design criteria for new CCR landfills and any lateral expansion of a CCR landfill, 40 C.F.R. 257.70.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-201 establishes design criteria for new coal combustion residue landfills and lateral expansions under federal 40 C.F.R. 257.70; filed April 28, 2026.
- OAC 3745-525-202 - Liner design criteria for existing CCR surface impoundments, 40 C.F.R. 257.71.April 28, 2026
Ohio Environmental Protection Agency proposes rule OAC 3745-525-202 establishing liner design criteria for existing coal combustion residue surface impoundments under federal 40 C.F.R. 257.71; filed April 28, 2026.
- OAC 3745-525-203 - Liner design criteria for new CCR surface impoundments and any lateral expansion of a CCR surface impoundment, 40 C.F.R. 257.72.April 28, 2026
Ohio Environmental Protection Agency establishes liner design criteria for new coal combustion residue surface impoundments and lateral expansions under OAC 3745-525-203, filed April 28, 2026.
- OAC 3745-525-02 - Applicability of other regulations, 40 C.F.R. 257.52.April 28, 2026
Ohio EPA proposes new rule OAC 3745-525-02 governing applicability of federal regulations 40 C.F.R. 257.52; filed April 28, 2026.
- OAC 3745-525-102 - Location restriction demonstration – wetlands, 40 C.F.R. 257.61.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-102 establishing location restriction demonstrations for wetlands under federal standards; filed April 28, 2026.
- OAC 3745-525-01 - Scope and purpose, 40 C.F.R. 257.50.April 28, 2026
Ohio Environmental Protection Agency proposes rule OAC 3745-525-01 governing scope and purpose under 40 C.F.R. 257.50; filed April 28, 2026.
- OAC 3745-525-630 - Hydrologic and hydraulic capacity requirements for CCR surface impoundments, 40 C.F.R. 257.82.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-630 establishing hydrologic and hydraulic capacity requirements for coal combustion residue surface impoundments under 40 C.F.R. 257.82, filed April 28, 2026.
- OAC 3745-525-03 - Definitions, 40 C.F.R. 257.53.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-03 defining terms under 40 CFR 257.53; filed April 28, 2026.
- OAC 3745-525-940 - Assessment monitoring program, 40 C.F.R. 257.95.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-940 to establish assessment monitoring program requirements under 40 C.F.R. 257.95, filed April 28, 2026.
- OAC 3745-525-950 - Assessment of corrective measures, 40 C.F.R. 257.96.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-950 for assessment of corrective measures under 40 C.F.R. 257.96; filed April 28, 2026.
- OAC 3745-525-910 - Groundwater monitoring systems, 40 C.F.R. 257.91.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-910 governing groundwater monitoring systems under 40 C.F.R. 257.91; filed April 28, 2026.
- OAC 3745-525-920 - Groundwater sampling and analysis requirements, 40 C.F.R. 257.93.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-920 to establish groundwater sampling and analysis requirements under 40 C.F.R. 257.93, filed April 28, 2026.
- OAC 3745-525-970 - Implementation of the corrective action program, 40 C.F.R. 257.98.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-970 to implement corrective action program requirements under 40 CFR 257.98; rule filed April 28, 2026.
- OAC 3745-525-730 - Alternative closure requirements, 40 C.F.R. 257.103.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-730 establishing alternative closure requirements for regulated facilities under 40 CFR 257.103; rule filed April 28, 2026.