In May 2018, during discussion on the 2018 Annual PM2.5 State Implementation Plan (SIP) submitted by the Imperial County Air Pollution Control District (District), the California Air Resources Board (CARB) requested that CARB staff review the District’s enforcement program to look for ways that it might be improved. The goal of the review being to ensure that emission sources within the District demonstrate complete compliance with all air pollution control related requirements. CARB and the District collaborated and were able to discover areas to strengthen the enforcement program.
