Regulation & law · 19/09/2012Updated: 10/17/2026 · 1 min read

EPA Proposes Withdrawal of California Air Quality Plan Approval

The Environmental Protection Agency (EPA) is proposing to withdraw its approval of California's air quality implementation plan, which aims to reduce ozone levels in the San Joaquin Valley, due to a court decision that remanded the plan. The EPA is also withdrawing its approval of a separate plan related to 8-hour ozone standards in the same area.