Ohio Hazardous Air Pollutants: What you need to know

Governing Law and Regulations

National Emission Standards for Hazardous Air Pollutants (NESHAP): 40 CFR 61 and 40 CFR 63

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Toxic air contaminants (TACs): Ohio Administrative Code (OAC) 3745-114-01

Regulatory Agencies

Ohio Environmental Protection Agency (OEPA) Division of Air Pollution Control

Local air pollution control agencies

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Ohio may require sources emitting TACs to obtain a permit-to-install. The Ohio list of TACs differs from the federal HAP list. In addition, applicable sources in the state must comply with the NESHAP standards, including the source-specific NESHAPs, also known as maximum achievable control technology (MACT) standards. Refer to the national section HAZARDOUS AIR POLLUTANTS for more information.

Administration and enforcement. OEPA has been delegated authority by the U.S. Environmental Protection Agency (EPA) to implement and enforce the federal HAP rules. OEPA also implements and enforces the state TAC requirements. Many counties have local air pollution control agencies that may be responsible for assisting OEPA in administering and enforcing requirements within their jurisdictions. See the state section AIR (REGULATORY OVERVIEW) for more information on local agencies.

State Requirements


OAC 3745-114-01

OEPA may require any new or modified source that emits a TAC to obtain a permit to install if exposure to the TAC via inhalation or other means presents either of the following:

  • A threat of adverse human health effects, including: —Substances that are known to be, or may reasonably be anticipated to be, carcinogenic, ...

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More on this topic:

Governing Law and Regulations
Regulatory Agencies
Comparison: State vs. Federal
State Requirements

State Requirements

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Ohio Hazardous Air Pollutants Resources

Hazardous Air Pollutants Products

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