South Coast AQMD’s Annual Emission Report (AER) for Reporting Year 2025

It’s that time of year again when permitted facilities within the South Coast Air Quality Management District (AQMD) subject to the Annual Emission Reporting (AER) program must submit their 2025 emissions by Friday, May 1, 2026. The deadline may feel distant, but if your facility is submitting for the first time, the best time to begin is today. 

Is Your Facility Subject to Reporting Requirements? 

Your facility is required to report if it meets any one of the following criteria: 

1. The facility exceeds annual emission thresholds as specified in AQMD Rule 301(e): 

2. Estimated annual emissions of four (4) or more tons of either sulfur oxides (SOx), volatile organic compounds (VOCs), nitrogen oxides (NOx), specific organics (SPOG), particulate matter (PM), or emissions of 100 tons per year or more of carbon monoxide (CO); 

3. The facility is subject to the California Air Resources Board (CARB) Criteria and Toxics Reporting (CTR) Regulation as specified in California Code of Regulations (CCR) Section 93401 (including CTR Phase 3 Facilities); 

   1. Phase 3 facilities include, but are not limited to: combustion of natural gas or propane (77,000 MMBtu/year), cremation of humans or animals, incineration of waste or tires, metal melting operations, manufacturing of fiberglass, pulp and paper, or semiconductors, boat and ship building and repair, etc. 

4. The facility is subject to the Assembly Bill (AB) 2588 Air Toxics “Hot Spots” Program (quadrennial report for Phase 2 due this year); 

5. The facility is subject to SCAQMD Rule 317.1; or  

6. South Coast AQMD otherwise notifies the facility that it is subject to reporting. 

What Emissions Do You Have to Report? 

Your facility will need to disclose the following emissions for reporting year 2025: 

1. Criteria Pollutants such as Ozone, NOx, SOx, CO, PM, VOC, SPOG, and Lead 

2. Ozone Depleting Compounds 

3. Toxic Air Contaminants (TACs), those subject to AQMD AER fees in Table IV of SCAQMD Rule 301, and those listed in CARB CTR Regulation 

How Can ALG Help? 

Developing and accurately submitting an AER can be a complex and resource-intensive process, particularly for companies with limited staffing. At ALG, our subject matter experts have over 20 years of experience preparing and submitting AERs on behalf of our clients across the manufacturing, property management, energy, petroleum, and other regulated industries. If you have received correspondence from AQMD or are unsure whether your facility is subject to AER reporting requirements, please feel free to contact one of our AER experts, Jayme Dryden, at jdryden@algcorp.com.