Exceptional Events Guidance: Prescribed Fire on Wildland that May Influence Ozone and Particulate Matter Concentrations

This document is intended to assist air agencies in preparing demonstrations under the Exceptional Events Rule pertaining to prescribed fires that influence Ozone (O₃) and particulate matter (PM) concentrations.  

• Exceptional Events Guidance: Prescribed Fire on Wildland that May Influence Ozone and Particulate Matter Concentrations (pdf) (609.18 KB)