Recent Ohio regulations affecting small businesses
Page 12 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 Environmental Compliance, 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 3745-525-710 - Closure or retrofit of CCR units, 40 C.F.R. 257.101.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-710 establishes closure or retrofit requirements for coal combustion residual units under 40 C.F.R. 257.101, filed April 28, 2026.
- OAC 3745-525-720 - Criteria for conducting the closure or retrofit of CCR units, 40 C.F.R. 257.102.April 28, 2026
Ohio Environmental Protection Agency proposes rule OAC 3745-525-720 establishing criteria for closure or retrofit of coal combustion residual units under federal 40 C.F.R. 257.102; 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 3745-525-70 - Publicly accessible internet site requirements, 40 C.F.R. 257.107.April 28, 2026 • Impact: none
Ohio Environmental Protection Agency proposes OAC 3745-525-70 to establish publicly accessible internet site requirements under 40 C.F.R. 257.107; rule filed April 28, 2026.
- OAC 3745-525-930 - Detection monitoring program, 40 C.F.R. 257.94.April 28, 2026
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-930 establishing detection monitoring program requirements under federal standards; filed April 28, 2026.
- OAC 3745-525-610 - Air criteria, 40 C.F.R. 257.80.April 28, 2026 • Impact: none
Ohio Environmental Protection Agency proposes new rule OAC 3745-525-610 establishing air criteria under 40 C.F.R. 257.80; filed April 28, 2026.
- OAC 3745-525-620 - Run-on and run-off controls for CCR landfills, 40 C.F.R. 257.81.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-620 establishing run-on and run-off controls for coal combustion residue landfills under 40 C.F.R. 257.81; 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 3745-525-640 - Inspection requirements for CCR surface impoundments, 40 C.F.R. 257.83.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-640 establishes inspection requirements for CCR surface impoundments under 40 C.F.R. 257.83; filed April 28, 2026.
- OAC 3745-525-315 - Criteria for approval of an application for a permit to install and operate for a CCR unit.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-315 establishes approval criteria for permits to install and operate CCR units; 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 3745-525-650 - Inspection requirements for CCR landfills, 40 C.F.R. 257.84.April 28, 2026
Ohio Environmental Protection Agency establishes OAC 3745-525-650 to set inspection requirements for coal combustion residue landfills under 40 C.F.R. 257.84; rule filed April 28, 2026.
- OAC 3745-525-104 - Location restriction demonstration - seismic impact zones, 40 C.F.R. 257.63.April 28, 2026
Ohio Environmental Protection Agency proposes OAC 3745-525-104 to govern location restriction demonstrations in seismic impact zones under federal regulation 40 C.F.R. 257.63; rule filed April 28, 2026.
- OAC 3745-525-103 - Location restriction demonstration - fault areas, 40 C.F.R. 257.62.April 28, 2026
Ohio Environmental Protection Agency rule OAC 3745-525-103 establishes location restriction demonstrations for fault areas under federal solid waste regulations; filed April 28, 2026.
- OAC 4715-9-01 - Permissible practices of a dental hygienist.April 27, 2026
Ohio Administrative Code 4715-9-01 amendments expand permissible practices for dental hygienists, effective May 11, 2026.