Do I Need an Air Permit?

Regulated Pollutants

A permit is required for a stationary source that emits or has the maximum capacity to emit regulated air pollutants in an amount greater than or equal to the permitting thresholds listed below.  

Dust Control Permit is required by Rule 310 for any activity that will disturb a surface area equal to or greater than 0.1 acre (4,356 square feet).

Pollutant Potential
to Emit
Emission Rate in
Tons per Year (TPY)
Particulate Matter (PM2.5) 0.5
Particulate Matter (PM10) 0.5
Sulfur Dioxide (SO2) 1.0
Nitrogen Oxides (NOx) 1.0
Volatile Organic Compounds (VOC) 0.5
Carbon Monoxide (CO) 1.0
Lead (Pb) 0.3
Single Hazardous Air Pollutant (HAP) other than Pb
Total HAPs
Any other regulated air pollutant
Page reviewed 27 November 2023