Oregon Hazardous Air Pollutants: What you need to know

Governing Law and Regulations

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

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Adoption of NESHAPs: Oregon Administrative Rules (OAR) 340-244-0010 to 340-244-0220

State air toxics program: OAR 340-246-0010 to 340-246-0230


Emissions from large stationary sources: OAR 340-228-0600 to 340-228-0637

Regulatory Agencies

Oregon Department of Environmental Quality (DEQ) Air Quality Division

Lane Regional Air Protection Agency (LRAPA)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Oregon adopts by reference the federal National Emissions Standards for Hazardous Air Pollutants (NESHAP) standards, including the NESHAPs for source categories, also known as maximum achievable control technology (MACT) standards. Oregon has developed a state-level air toxics program to deal with any threats posed by hazardous air pollutants (HAPs) after the implementation of the NESHAPs. Refer to the national section HAZARDOUS AIR POLLUTANTS for more information.

Administration and enforcement. DEQ's Air Quality Division administers and enforces the hazardous air pollutant rules in Oregon. LRAPA has received delegated authority from the U.S. Environmental Protection Agency to administer and enforce certain NESHAPs.

State Requirements


OAR 340-246-0010 to 340-246-0230

Oregon is developing a state air toxics program to address threats to public health and the environment from toxic air pollutants that remain after implementing the federal technology-based standards, i.e., NESHAPs and MACT standards. Oregon's program meets the goals of the federal Urban Air Toxics ...

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State Requirements

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Oregon Hazardous Air Pollutants Resources

Hazardous Air Pollutants Products

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