 | | | tac members | | | |
| Cities of Los Angeles County Representative | | | Layne Baroldi | | | Alternate: Vacant | |
| Cities of Orange County Representative | | | Doug Reilly | | | Alternate: Dick Wilson | |
| San Bernardino Associated Governments Representative | | | Michelle Kirkhoff | | | Alternate: Kelly Lynn | |
| Southern California Association of Governments Representative | | | Jonathan Nadler | | | Alternate: Rongsheng Luo | |
| Riverside County Transportation Commission Representative | | | Tanya Love | | | Alternate: Eliza Echevarria | |
| Riverside County Board of Supervisors Representative | | | Mike Shetler | | | Alternate: Bob Tremaine | |
| Air Resources Board Representative | | | Mohan Krishnamurthy | | | Alternate: Earl Withycombe | |
| South Coast Air Quality Management District Representative | | | Dean Saito | | | Alternate: Connie Day | |
| Orange County Board of Supervisors Representative | | | Bill Douglas | | | Alternate: Terry Collins & Anthony Marquez | |
| Los Angeles County Metropolitan Transportation Authority Representative | | | Stacy Alameida | | | Alternate: Stephen Fox | |
| Cities of Riverside County Representative | | | Mike Gow, City of Hemet | | | Alternate: Kristen Jensen | |
| San Bernardino County Board of Supervisors Representative | | | Danielle Borish | | | Alternate: Rick Ferguson | |
| Los Angeles County Board of Supervisors | | | Travis Seawards | | | Alternate: Mark Herwick | |
| Mechanical Expert Representative | | | Vacant | | |
| Cities of San Bernardino County Representative | | | Sean O'Connor, City of Chino Hills | | | Alternate: Vacant | |
| Air Pollution Control Expert Representative | | | Vince Mastrosimone | | |
| Orange County Transportation Authority Representative | | | Vacant | | |
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