![](https://ehsprinciplesandpractice.com/wp-content/uploads/2023/05/qtq80-3mBloA.jpeg)
22.4 New Source Performance Standards
Regulations that set uniform emission limitations for certain industrial categories or sub-categories of sources
![](https://ehsprinciplesandpractice.com/wp-content/uploads/2023/05/qtq80-toaokV.jpeg)
22.5 National Emission Standards for Hazardous Air Pollutants
Standards that establish limitations and controls for emissions of Hazardous Air Pollutants (HAP) from certain operations
![](https://ehsprinciplesandpractice.com/wp-content/uploads/2023/05/qtq80-Cvs0nk.jpeg)
22.6 National Ambient Air Quality Standards
Regulations that limit the concentration of pollutants in the air
![](https://ehsprinciplesandpractice.com/wp-content/uploads/2023/05/qtq80-z3pfRW.jpeg)
22.8 Construction Permit Evaluation
Discussion topics on whether an air construction permit is required
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