Recent Ohio regulations affecting small businesses
Page 10 of 34 • Last updated April 28, 2026
505 new Ohio regulations affecting small businesses have been published in the past 30 days. These cover compliance updates from state agencies, regional authorities, and licensing boards — flagged here when they change a rule, fee, deadline, or eligibility threshold. Recent activity has clustered in Operations, alongside cross-cutting administrative changes. Each listing links to the official notice so you can read the full text and respond if it touches your business.
- 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 • Impact: none
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 • Impact: low
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 • Impact: low
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 • Impact: low
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 • Impact: low
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 • Impact: none
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 • Impact: none
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 • Impact: none
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 • Impact: low
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 • Impact: none
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.