Air Quality Division

Air Quality Health Advisory issued for parts of Oklahoma for Thursday, September 11, 2025

An Air Quality Advisory Council meeting was held on October 16 at the DEQ headquarters. The proposed rules and other meeting materials have been posted. Go to the October meeting page >

To improve Oklahoma air quality, especially for our children, DEQ announces $700,000 in grant funding available for schools to replace their old smelly diesel school buses! This is a first-come, first-serve opportunity. The first complete applications with eligible projects will be awarded! Applications will be accepted until all funding has been awarded. For more info Go to the Oklahoma Clean Diesel (DERA) Program webpage >

DEQ will soon be updating both Subchapter 49 and form #100-240 in response to recent statutory changes to the Oklahoma Emission Reduction Technology Rebate Program. However, the rebate program (OAC 252:100-49) is in effect, and the rebate claim application (DEQ Form #100-240) is available for qualifying Emission Reduction Projects (ERPs) from Oklahoma's Oil & Gas industry (requires a $1,000 non-refundable review and processing fee). The deadline for submitting rebate claims for FY25 ERPs is 12/31/25.

Note: The 2024 Oklahoma Legislature appropriated $50 million for the newly-renamed "Oklahoma Emission Reduction Technology Upstream and Midstream Incentive Revolving Fund." The 2025 Oklahoma Legislature transferred $20 million of the $50 million to the "Oklahoma Emission Reduction Technology Downstream Incentive Revolving Fund" (for petroleum refineries).

October Council
DERA
OERTRP

About Air Quality

The amount of pollution in the air from all sources – natural and human – defines the quality of the air we breathe. Air pollution isn’t limited to our cities; it can blow into any part of Oklahoma from neighboring states.

Bad air quality can affect everybody’s health. It can have direct effects on the lungs, and it can worsen an existing condition, such as asthma. Some people are more sensitive to air pollution than others. These include young children who are growing rapidly and older adults who have reduced immune systems.

Poor public health also incurs economic costs for society, e.g., increased healthcare costs and loss of working days. A clean environment makes Oklahoma an attractive place to live, work and play: something we can all be proud of.