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Why the Bay Area’s Zero-Emission Appliance Rule is a Big Deal

Legal Planet

Additionally, NOx react with other chemicals in the air to create other harmful pollutants, like fine particulate matter and ozone. The rule would ban most new gas water heaters (in new construction and replacements in homes) after 2027, gas furnaces after 2029, and large gas water heaters (in apartments and commercial buildings) after 2031.