In 2021, the California Air Resources Board (CARB) amended its Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants (CTR) to require many more facilities in the state to be subject to reporting emissions. 

Beginning with year 2022 emissions reported in 2023, a multiple year phase-in process will substantially expand the emissions reporting requirements to apply to nearly all stationary emission sources permitted by California air districts, including South Coast AQMD. Facilities will be phased in by specific industry categories such as metal plating and dry cleaning operations with some categories only applicable based on annual activity or emission levels. 

South Coast AQMD implements emission reporting requirements under both Rule 301 and the CTR regulation through its Annual Emissions Reporting (AER) program. The deadline for submitting the 2022 annual emissions report to comply with AER and CTR requirements, including any applicable fees, is May 1, 2023, by 5:00 p.m.

For more information on CTR requirements and applicability, please contact CARB staff at ctr-report@arb.ca.gov or (916) 382-0997. For questions and support regarding the AER program and how to access the online reporting tool, please contact AER staff at aer@aqmd.gov or (909) 396-3660.