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Commercial Vehicles · Scale Certifications

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Certification Search

Enter the serial number of the scale in question or test number for the calibration equipment to view or print a copy of the notarized certification.

To obtain a copy of an official scale certification, please email your request to Requests will be answered within two (2) business days. In your request, please be sure to include the following information:
  • Scale location (Include information such as Northbound, Southbound, East or West side if applicable).
  • Scale serial number
  • Mile post marker

Fixed or portable scale
Calibration equipment

ID number:

Curriculum Vitae Search

Select a scale certification crew member from the drop-down list to view a summary of their education and work history.


Contact Information

If you have additional questions about the scale certifications, regulations, equipment, inspections, or other standards for large commercial trucks and buses, please contact the Commercial Vehicle Division at:

Commercial Vehicle Division
Washington State Patrol
PO Box 42614
Olympia, WA 98504-2614
Phone: (360) 596-3800
Fax: (360) 596-3829