Assembly BillFailedHealth and Safety
AB 852: Air pollution: oxides of nitrogen: furnaces and water heaters.
What AB 852 does, verified February 3, 2026
The bill aims to regulate the emission of oxides of nitrogen into the atmosphere. It would specify that regulations on gas-fired appliances do not apply if they are converted to run on propane only. This conversion must be done with a propane conversion kit. The bill would add new regulations to the existing laws on air pollution.
Bill journey
✓IntroducedComplete
2In CommitteeCurrent
3First Chamber FloorPending
4Second ChamberPending
5GovernorPending
6ChapteredPending
Last action: From committee: Filed with the Chief Clerk pursuant to Joint Rule 56. (2026-02-02)Alert me
Author and sponsors
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| Feb. 02, 2026 | From committee: Filed with the Chief Clerk pursuant to Joint Rule 56. |
| Jan. 31, 2026 | Died pursuant to Art. IV, Sec. 10(c) of the Constitution. |
| Mar. 10, 2025 | Referred to Com. on NAT. RES. |
| Feb. 20, 2025 | From printer. May be heard in committee March 22. |
| Feb. 19, 2025 | Read first time. To print. |
Latest bill textIntroduced version, February 19, 2025 · 399 words
CALIFORNIA LEGISLATURE— 2025–2026 REGULAR SESSION
Assembly Bill
No. 852
| Introduced by Assembly Member Wallis |
February 19, 2025 |
An act to add Section 41709 to the Health and Safety Code, relating to air pollution.
LEGISLATIVE COUNSEL'S DIGEST
AB 852, as introduced, Wallis. Air pollution: oxides of nitrogen: furnaces and water heaters.
Existing law regulates the emission of air contaminants, including the oxides of nitrogen, into the atmosphere. Existing law generally vests regulatory jurisdiction over stationary sources of air pollution to the air pollution control districts and air quality management districts and regulatory jurisdiction over mobile sources of air pollution to the State Air Resources Board.
This bill would specify that regulations adopted by districts or the state board prohibiting or restricting the sale or use of a gas-fired appliance, as defined, based on the emission limitations for oxides of nitrogen does not apply to the sale or use of that appliance if the appliance is to be installed with a propane conversion kit for propane firing only.
The people of the State of California do enact as follows:
SECTION 1.
The Legislature finds and declares all of the following:(a) The Bay Area Air Quality Management District adopted Rules 9-4 and 9-6 to reduce emissions of oxides of nitrogen from gas space and water heaters used in buildings within the San Francisco Bay Area.
(b) Subsequently, the South Coast Air Quality Management District adopted Rule 1111 to reduce emissions of oxides of nitrogen from natural gas furnaces, but allow for propane conversion kits to be installed for propane firing only.
(c) Both of those districts exempted propane as an acceptable fuel source for heaters when adopting these rules.
(d) The actions by those districts serve as a precedence for action by other air pollution control districts, air quality management districts, and the State Air Resources Board.
SEC. 2.
Section 41709 is added to the Health and Safety Code, to read:41709.
(a) For purposes of this section, “appliance” means a furnace, or a water boiler or heater.(b) A regulation adopted by the state board or a district prohibiting or restricting the sale or use of a gas-fired appliance based on the emission limitation for oxides of nitrogen shall not apply to the sale or use of that appliance if the appliance is to be installed with a propane conversion kit for propane firing only.
Text of AB 852 as introduced, from the official record. Connect Plus keeps every version and highlights what changed.Compare versions