This bill significantly amends the Clean Air Act by explicitly including prescribed fires in the definition of an exceptional event . This change allows emissions from deliberately ignited fires for wildland fuel management, including cultural burning, to be excluded from air quality monitoring data used for regulatory compliance. The legislation recognizes the important role prescribed fire plays in reducing the magnitude and frequency of wildfires, aiming to streamline the process for states to manage these events without incurring Clean Air Act violations. The Environmental Protection Agency Administrator is mandated to revise existing regulations within 270 days for proposed changes and 180 days for final revisions. These revisions aim to reduce the burden and cost for states to demonstrate exceptional events and to clarify the eligibility of prescribed fires. A key provision states that if the Administrator does not act on a State petition for an exceptional event within one year, the petition will be deemed approved . Additionally, the bill establishes a Smoke Ready Communities Program , authorizing competitive grants to states, tribes, and other eligible entities. These grants are intended for the assessment, prevention, control, or abatement of wildfire smoke hazards in community buildings, including schools, with a federal cost share of up to 90 percent, waivable for economically distressed communities.