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Notice
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Air District Board Votes to Delay Water Heater Requirement
The Air District Board approved updates to the zero-NOx water heater rule that delay implementation to January 2028 and allow exemptions for low-income homeowners, properties with electrical limitations and space-constrained homes. View press release(181 Kb PDF, 2 pgs, posted 11/4/2026).
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About Air Quality
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Permits
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Research and Data
Learn about and access research and data available from Air District programs and initiatives.
The Air District is responsible for plans, rules, permits, compliance assistance, community engagement, grants and education all aimed at achieving healthy air. On this page, you can link to information about:
- Current air quality standards and how the Bay Area is doing in meeting them.
- Current air quality measurements and data.
- How the Air District forecasts future air quality using its meteorological and monitoring network.
- Emissions from Air District regulated facilities via our emissions inventory.
- Air District modeling and research on pollutant behavior, exposure levels and more.
- Air monitoring projects in selected communities and at selected facilities.
- Interactive data available in map formats.
- Emissions from refinery flares.
- The Air District’s community air risk evaluation program.
Contact Us
Communications
General Information
415.749.4900
Meteorology & Measurements
Air Monitoring
415.749.4985
Last Updated: 8/3/2023