Regulation & law · 19/12/2024
EPA Corrects Final Rule on National Ambient Air Quality Standards for Particulate Matter
The Environmental Protection Agency (EPA) is correcting errors in a final rule published on March 6, 2024, which revised the primary annual PM 2.5 standard and finalized revisions to the Air Quality Index and monitoring requirements for particulate matter.
Original source language: Federal Register — All DocumentsOpen original release →