On February 23, 2023, the California Air Resources Board (CARB) will consider adoption of the Western Mojave Desert 70 parts per billion (ppb) Ozone Attainment Plan (70 ppb Plan). The Western Mojave Desert ozone nonattainment area consists of the Antelope Valley portion of Los Angeles County under the jurisdiction of the Antelope Valley Air Quality Management District (Antelope Valley AQMD), and the southwestern portion of San Bernardino County under the jurisdiction of the Mojave Desert Air Quality Management District (Mojave Desert AQMD). The 70 ppb Plan will be considered by the Antelope Valley AQMD Governing Board on January 17, 2023, and by the Mojave Desert AQMD Governing Board on January 23, 2023. If the Districts adopt the 70 ppb Plan as provided to CARB for consideration, and if adopted by CARB, CARB will submit the 70 ppb Plan and the relevant portions of the CARB Staff Report to the U.S. Environmental Protection Agency for inclusion in the California State Implementation Plan.
