Several classes of equipment have been certified by South Coast AQMD as meeting all of the requirements in the associated rule. Certification of equipment helps businesses and residents comply with South Coast AQMD regulations by identifying equipment that already meets South Coast AQMD rule requirements.
Rule 1121: Residential-Type, Natural Gas-Fired Water Heaters
Certified Heaters List (R1121) (PDF, 493 KB) Last Updated 12/15/2023
Rule 1146.2: Large Water Heaters, Small Boilers and Process Heaters
Certified Boilers List (R1146.2) (XLSX, 69 KB) Last Updated 12/15/2023
Certified Emergency ICE Generators List
Certified E-ICE Generators List (XLSX, 79 KB) Last Updated 12/15/2023
Rule 1147: Automotive Spray Booth Make-Up Air Units
Certification Letters
Midco LNB 500 (PDF, 1 MB) Last Updated 5/31/2017
Midco LNB 1000 (PDF, 1 MB) Last Updated 5/31/2017
Midco LNB 1000 (PDF, 90 KB) Last Updated 12/21/2015
Spray Enclosure Technology, Inc (PDF, 315 KB) Last Updated 12/21/2015
Rule 1138: Charbroilers with Integrated Catalyst
Certified Model List (R1138) (PDF, 582KB) Last Updated 5/5/2023
Rule 1186: Street Sweepers
Certified Model List (R1186) (PDF, 493 KB) Last Updated 2/18/2022