Proposed Amended Rule 1111 – Reduction of NOx Emissions from Natural-Gas-Fired, Fan-Type Central Furnaces
Summary
SCH Number
2026010227
Public Agency
South Coast Air Quality Management District
Document Title
Proposed Amended Rule 1111 – Reduction of NOx Emissions from Natural-Gas-Fired, Fan-Type Central Furnaces
Document Type
NOE - Notice of Exemption
Received
Posted
1/9/2026
Document Description
Rule 1111, which is designed to reduce emissions of nitrogen oxides (NOx) from residential and commercial gas-fired fan-type space heating furnaces, includes an alternate compliance option allowing manufacturers to pay a per-unit mitigation fee depending on the furnace type, in lieu of providing furnaces capable of achieving the applicable NOx emission limits. Proposed Amended Rule 1111 (PAR 1111) seeks to extend the end date of the mitigation fee alternate compliance option for mobile home furnaces with a NOx emission rate of 40 nanogram per Joule (ng/J) from September 30, 2025 to September 30, 2030 which will result in delayed NOx emission reductions by approximately 0.014 ton per day (equivalent to 27 pounds per day). However, by providing additional time for manufacturers of mobile home furnaces to develop lower NOx-emitting units, manufacturers of mobile homes as well as owners of mobile homes who may be in need of replacing their furnaces during the next five years will have a benefit of uninterrupted access to commercially available equipment.
Contact Information
Name
Sina Taghvaee
Agency Name
South Coast AQMD
Job Title
Air Quality Specialist
Contact Types
Lead/Public Agency
Phone
Email
Location
Counties
Los Angeles, Orange, Riverside, San Bernardino
Regions
Countywide
Other Information
The proposed project is located within the South Coast Air Quality Management District’s (South Coast AQMD) jurisdiction, which includes the four-county South Coast Air Basin (all of Orange County and the non-desert portions of Los Angeles, Riverside, and San Bernardino counties), and the Riverside County portion of the Salton Sea Air Basin and the non-Palo Verde, Riverside County portion of the Mojave Desert Air Basin.
Notice of Exemption
Exempt Status
Other
Type, Section or Code
15061(b)(3)
Reasons for Exemption
South Coast AQMD, as Lead Agency, has reviewed the proposed project (PAR 1111) pursuant to: 1) CEQA Guidelines Section 15002(k) – General Concepts, the three-step process for deciding which document to prepare for a project subject to CEQA; and 2) CEQA Guidelines Section 15061 – Review for Exemption, procedures for determining if a project is exempt from CEQA. Since the quantity of delayed NOx emission reductions are expected to be temporary and less than the South Coast AQMD air quality significance threshold for NOx, it can be seen with certainty that implementing the PAR 1111 would not cause a significant adverse effect on the environment. Therefore, the proposed project is exempt from CEQA pursuant to CEQA Guidelines Section 15061(b)(3) – Common Sense Exemption.
County Clerks
Los Angeles, Orange, Riverside, San Bernardino
Attachments
Notice of Exemption
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