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Verification

California VIN Verification Requirements

When California requires REG 31 VIN verification, who can perform it, and how to avoid common DMV rejection issues.

Quick answer

A California VIN verification (REG 31) is required when DMV cannot confirm vehicle identity from documents alone—common for out-of-state transfers, certain corrections, kit vehicles, and some salvage cases. Verifications must be performed by authorized DMV, CHP, or licensed verifiers.

Typical processing
Verification itself is usually same day; registration approval still depends on the full document package.
Fees
Verifier fees vary by location. DMV may charge additional fees as part of the broader registration transaction.
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Step-by-step

  1. Step 1

    Determine if verification is required

    Check DMV transaction codes, out-of-state status, and whether VIN data mismatches DMV records.

  2. Step 2

    Schedule with an authorized verifier

    DMV field offices, CHP, and licensed verifiers can complete REG 31. Mobile verifiers may come to your location.

  3. Step 3

    Prepare the vehicle for inspection

    Clean VIN plates, bring keys, and ensure the vehicle starts if operability affects inspection.

  4. Step 4

    Submit REG 31 with registration application

    Attach verification to REG 343 or other applications. Mismatched data without REG 256 explanations triggers RDF.

Requirements

  • Vehicle must be presented unless an exception applies for specific transaction types.
  • VIN plate, federal label, and engine numbers (when required) must be legible and match documents.
  • Any discrepancies in year, make, or body type must be explained with supporting documents.

Documents you may need

  • REG 31 completed by authorized verifier
  • Current title or registration from prior state
  • REG 256 Statement of Facts for corrections
  • Supporting invoices or manufacturer statements when equipment was changed

Frequently asked questions

Executive Summary

A California VIN verification (REG 31) is required when DMV cannot confirm vehicle identity from documents alone—common for out-of-state transfers, certain corrections, kit vehicles, and some salvage cases. Verifications must be performed by authorized DMV, CHP, or licensed verifiers.

Key Takeaways

  • Vehicle must be presented unless an exception applies for specific transaction types.
  • VIN plate, federal label, and engine numbers (when required) must be legible and match documents.
  • Any discrepancies in year, make, or body type must be explained with supporting documents.

Important Facts

Processing
Verification itself is usually same day; registration approval still depends on the full document package.
Fees
Varies by vehicle and county
Related service
vehicle verification mobile vin verification
Help
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