2018 State Implementation Plan for the 12 µg/m3 PM2.5 Annual Standard Categories Topics Air Quality Plans Programs California State Implementation Plans Type Information At a public meeting held on May 25, 2018, the California Air Resources Board approved the 2018 State Implementation Plan for the Imperial County 12 ug/m3 Annual PM2.5 Standard.CARB DocumentsNotice of Location ChangePublic Notice to consider the approval of the 2018 State Implementation Plan for the Imperial County 12 ug/m3 PM2.5 Annual StandardStaff Report: CARB Staff Review of the 2018 State Implementation Plan for the Imperial County 12 ug/m3 PM2.5 Annual StandardAppendix A: 179B Technical DemonstrationAppendix B: Link to District 2018 PM2.5 Plan Related Resources Western Mojave Desert 70 ppb Ozone Attainment Plan 2023 Yuba City-Marysville Planning Area PM2.5 2nd Maintenance Plan South Coast 2022 Air Quality Management Plan
