2003 Owens Valley PM10 SIP Revision Categories Topics Air Quality Plans Programs California State Implementation Plans Type Information In November 2003, the Great Basin Unified Air Pollution Control District Board adopted revisions to the PM10 Attainment Demonstration SIP. The plan revises and documents compliance with the 1998 SIP.CARB DocumentsSubmittal Letter to U.S. EPA (2/27/2004)Executive Order (G-125-316)District DocumentsPlan Transmittal Letter to CARBResolutionOwens Valley Attainment Plan Related Resources 2025 Updates to Motor Vehicle Emissions Budgets for California Ozone State Implementation Plans 2024 Transport State Implementation Plan Amendment 2023 Carbon Monoxide SIP Revision