Org Chart - Mobile Source Operations Division

This page last reviewed March 15, 2013

Mobile Source Operations Division Mission Statement:

The Mobile Source Control Division and Mobile Source Operations Division are responsible for developing statewide programs and strategies to reduce the emission of smog-forming pollutants and toxics by mobile sources. These include both on and off-road sources such as passenger cars, motorcycles, trucks, busses, heavy duty construction equipment, recreational vehicles, marine vessels, lawn and garden equipment, and small utility engines. For more detail, please go to the division's top page.

Organizational Chart

Vacant, Chief

  • Telephone:
  • Mailing Address:
    California Air Resources Board
    Mobile Source Operations Division
    9528 Telstar Avenue
    El Monte, CA 91731
  • Street Address:
    9528 Telstar Avenue

Vehicle and Engine Testing Branch

Mark Fuentes, Chief

  • Telephone: (626) 575-6817
  • Mailing Address:
    California Air Resources Board
    Mobile Source Operations Division
    9528 Telstar Avenue
    El Monte, CA 91731
  • Street Address:
    9528 Telstar Avenue
    El Monte, CA 91731
  • Mang Zhang, Specialty Vehicle & Engine Testing Section
    • Telephone: (626) 450-6166
    • Mailing Address: Same as above
  • Gary Mikailian, Laboratory Logistics & Test Support Section
    • Telephone: (626) 350-6484
    • Mailing Address: Same as above
  • Thu Vo, Vehicle Emissions Testing Section
    • Telephone: (626) 575-6846
    • Mailing Address: Same as above

New Vehicle/Engine Programs Branch

Jackie Lourenco, Chief

  • Telephone: (626) 450-6152
    California Air Resources Board
    Mobile Source Operations Division
    9528 Telstar Avenue
    El Monte, CA 91731
  • E-Mail Address:
  • Street Address:
    9528 Telstar Avenue
    El Monte, CA 91731
  • Duc Nguyen, On-Road Light-Duty Certification section
    • Telephone: (626) 575-6844
    • Mailing Address: Same as above
  • Rosalinda Castro, Aftermarket Parts Section
    • Telephone: (626) 575-6848
    • Mailing Address: Same as above
  • Kumar Muthukumar, Off-Road Spark-Ignited Engine Certification Section
    • Telephone: (626) 575-6776
  • Kimberly Pryor, Compression Ignition & Heavy Duty Certification Section
    • Telephone: (626) 575-6640

In-Use Vehicle Programs Branch

John Urkov, Chief

  • Telephone: (626) 575-6719
  • Mailing Address:
    California Air Resources Board
    Mobile Source Operations Division
    9528 Telstar Avenue
    El Monte, CA 91731
  • Street Address:
    9528 Telstar Avenue
    El Monte, CA 91731
  • Michael O'Connor, Evaporative Emissions Testing Section
    • Telephone: (626) 575-7040
    • Mailing Address: Same as above
  • Tom Valencia, In-Use Compliance Section
    • Telephone: (626) 575-6741
    • Mailing Address: Same as above
  • Don Chernich, Heavy Duty Diesel I/M Development Section
    • Telephone: (916) 322-7620
    • Mailing Address:
      California Air Resources Board
      P.O. Box 2815
      Sacramento, CA 95812
    • Street Address:
      1001 I Street
      Sacramento, CA 95814
  • Jeffrey Wong, Field Operations Warranty Section
    • Telephone: (626) 575-7009
    • Mailing Address: Same as above

Laboratory Data Support Branch

Robert Gammariello, Chief

  • Telephone: (626) 450-6138
  • Mailing Address:
    California Air Resources Board
    Mobile Source Operations Division
    9528 Telstar Avenue
    El Monte, CA 91731
  • Street Address:
    9528 Telstar Avenue
    El Monte, CA 91731
  • Steven Dang, Laboratory Testing Support Section
    • Telephone: (626) 575-6607
    • Mailing Address: Same as above
  • Dilip Patel, Data Development Services Section
    • Telephone: (626) 450-6141
    • Mailing Address: Same as above
  • Alvaro Gutierrez, Emission Laboratory Quality Assurance Section
    • Telephone: (626) 350-6549
    • Mailing Address: Same as above

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