Procedure to Obtain / Modify a DMS User Id Account 

This page last reviewed October 14, 2010


DMS Accounts for New Manufacturer / Consultant 


To obtain a DMS account, the manufacturer or consultant shall mail a hard copy of the following documents:

  1. A letter from the manufacturer stating its intent to obtain certification. Please address the “Letter of Intent” to:

    Ms. Annette Hebert, Chief
    Mobile Source Operations Division
    Air Resources Board
    9480 Telstar Avenue, Suite 4
    El Monte, California 91731

  2. An electronic signature letter following the guidelines established in MAC 07-01, is available.  The manufacturer shall indicate the category or categories that each person is authorized to sign.

  3. A completed Excel contact sheet. If a consultant submits the Excel contact sheet in lieu of the manufacturer, they must provide a manufacturer contact in addition to their own.

  4. In addition to the hardcopy items submitted above, e-mail an electronic copy of the three documents to the appropriate person from this list based on the category that you intend to certify.
Category Contact Name / E-mail Telephone
  • On-Road Light Duty
  • Motorcycle
  • Off Highway Recreational Vehicle (OHRVs)
 Duc Nguyen (626) 575-6844
  • On-Road Heavy Duty
  • Off-Road Compression Ignition Engines (OFCI)
 Kim Pryor (626) 575-6640
Off-Road
  • Large Spark Ignition Engine (LSIE)
  • Small Spark Ignition Engine (SSIE)
  • Spark Ignition Marine Engine (SIME)
Kumar Muthukumar (626) 575-7040


After processing these documents ARB staff will contact the manufacturer. The manufacturer will receive an ARB MFR code and a DMS account by e-mail.

DMS Account(s) Modifications for New and Existing Manufacturers

It is the manufacturer’s responsibility to update all contact information and notify ARB of changes, such as when a representative is no longer authorized to access the DMS. To report these, please submit an updated Excel contact sheet in electronic format to your certification engineer. Manufacturer has to resubmit the signature letter if their digital signature is different on the DMS documents.

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