The Board held a public meeting on September 23, 2021, to consider approval of the Sacramento County 2nd 10-Year PM10 Maintenance Plan (Plan). The Sacramento Metropolitan Air Quality Management District (District) approved the Plan on July 22, 2021. The Plan was submitted to the U.S. EPA as a revision to the California State Implementation Plan on October 20, 2021, and the Final Rule was published on March 14, 2024, effective April 15, 2024..
Proposed Rule: Second 10-Year Maintenance Plan for the 24-Hour PM10 Standards; Sacramento County Planning Area, California (88 FR 65336, September 22, 2023)
Final Rule: Second 10-Year Maintenance Plan for the 24-Hour PM10 Standards; Sacramento County Planning Area, California (89 FR 18548, effective April 15, 2024)
