Imperial County Air Pollution Control District State Implementation Plan 2021
This State Implementation Plan (SIP) for Imperial County addresses the 2012 Annual PM2.5 National Ambient Air Quality Standard (NAAQS). The plan aims to demonstrate attainment of the standard, acknowledging the significant impact of international emissions transported from Mexicali, Mexico. Key elements include detailed emission inventories, comprehensive precursor demonstrations, an attainment demonstration, and the implementation of various control measures (RACT, RACM, ARM). It also outlines requirements for Reasonable Further Progress (RFP), contingency measures, quantitative milestones, and transportation conformity to improve air quality and protect public health in the region, with a target attainment deadline of December 2021.