U.S. EPA Restores 2020 Language on Rule Allowing Major Sources to Reclassify as Area Sources

EPA Returns to Prior Approach to Major Source Reclassification In January 2026, the U.S. Environmental Protection Agency (EPA) published a final rule restoring the original language of the 2020 Major Source to Area Source rule.[1] The amendments remove the changes adopted in 2024 that required certain sources emitting hazardous air pollutants (HAPs) to continue meeting […]