Overview

• Regulators will vote on June 6 to adopt revised rules phasing out new natural gas water heaters and furnaces across the four-county Los Angeles basin beginning in 2027.
• The draft mandates manufacturers to sell at least 30% zero-emission heating appliances in 2027—rising to 90% by 2036—with fees on gas units funding incentives for low-income residents.
• The South Coast Air Quality Management District projects the plan will cut six tons of daily nitrogen oxide emissions and save $59 billion in health expenses by 2053.
• Backers highlight expected drops in asthma diagnoses, emergency visits and school absences, while business and gas-industry groups warn that added fees could drive up consumer costs.
• Bay Area rules passed in 2023 require zero-emission water heaters by 2027 and furnaces by 2029, offering a precedent for the South Coast plan.