REG 31 Form – If you’re registering a vehicle in California—especially one from out of state, with unavailable DMV records, or needing special verification—you’ll likely need the REG 31 form, officially titled Verification of Vehicle (Not to be completed by applicant). This essential DMV document confirms your vehicle’s identity through a physical inspection by an authorized professional.
In this complete guide, you’ll learn exactly what the REG 31 form is, when it’s required, who can complete it, and how to instantly download the latest official PDF. The most current version is REG 31 (REV. 5/2025), available directly from the California DMV.
What Is the California DMV REG 31 Form?
The REG 31 form is the official Verification of Vehicle document used by the California Department of Motor Vehicles (DMV). It records the results of a physical inspection of a complete and assembled vehicle or trailer to verify:
- Vehicle Identification Number (VIN)
- Model year, make, model, and body type
- Odometer reading
- Emission label compliance
- Federal safety certification label
- Supporting ownership documents
Important note: The form states clearly: “NOT TO BE COMPLETED BY APPLICANT.” Only authorized DMV representatives, California-licensed vehicle verifiers (VV), authorized auto club employees, or trained peace officers (including CHP) may fill it out after physically inspecting the vehicle.
The form ensures the vehicle matches DMV records, helps prevent fraud, and confirms compliance with California safety and emissions standards.
When Is the REG 31 Verification of Vehicle Form Required?
DMV requires a REG 31 in these common situations:
- Out-of-state vehicles being registered in California (with limited exceptions)
- Vehicles with no California DMV record (unavailable records)
- Revived junk or salvage vehicles (can also use CHP 97C in some cases)
- Title discrepancies, VIN corrections, or identification/engine number errors
- Out-of-country/import vehicles
- Specially constructed (SPCNS) vehicles or trailers
- Off-highway vehicles (OHV) converting to on-highway or dual-sport use
- Vehicles that do not meet California emission standards (verification is mandatory)
A REG 31 is not needed if the vehicle has prior California registration with an existing DMV record or was sold new by a licensed California dealer.
How to Download the Official REG 31 PDF (Latest Version)?
Direct Download Link (Official DMV):
Download REG 31 Form PDF – Verification of Vehicle (REV. 5/2025)
This is the most current revision (5/2025). Always use the latest version—older forms may be rejected. You can also find it on the official DMV forms page or at any DMV office.
Pro tip: Download and print a blank copy to bring to your verifier appointment for reference.
What Happens During REG 31 Vehicle Verification?
- Schedule an inspection — Contact a licensed vehicle verifier, DMV office, participating AAA Auto Club, or CHP.
- Bring the vehicle — It must be complete, assembled, and drivable (or towed if needed).
- Provide documents — Title, MSO/MCO, salvage certificate, or other ownership proof.
- Verifier inspects — They physically check the VIN location, labels, odometer, emissions compliance, and more. All sections 1–9 on the form must be completed—no blanks allowed.
- Form is signed and dated — The verifier certifies under penalty of perjury. You (the owner) may need to sign only if there’s an ID/engine number discrepancy.
- Submit to DMV — Include the completed REG 31 with your registration application.
Warning: Any alterations, cross-outs, erasures, or missing sections will void the form. A new verification will be required.
Key Sections on the REG 31 Form
The form captures critical details including:
- VIN location and attachment method
- Federal certification and emission labels
- Odometer mileage (miles or kilometers)
- Body type model (BTM) codes
- Supporting ownership document comparison
- Verifier’s agency, license number, and contact information
Remarks section is used for special notes (e.g., “Door replaced,” “Air bag missing,” or referrals to CHP).
Where to Get Your Vehicle Verified in California?
- DMV offices (authorized staff)
- California-licensed Vehicle Verifiers (VV)
- AAA Auto Club (participating locations)
- California Highway Patrol (CHP)
- Mobile VIN verification services (convenient for many owners)
Search the DMV website or call 1-800-777-0133 to locate an authorized verifier near you.
Frequently Asked Questions (FAQ)
Can I fill out the REG 31 form myself?
No. Only authorized verifiers may complete it after physical inspection.
How long is a REG 31 valid?
It must be submitted with your application; check with DMV for specific timing rules.
Is there a fee for verification?
Verifier fees vary (often $20–$50+); DMV does not charge for the form itself.
Do I need REG 31 for a motorcycle?
Yes, in most cases—especially for out-of-state, OHV conversions, or no-record vehicles. Both engine and frame numbers are required.
What if my VIN doesn’t match?
The verifier will note it; you may need additional forms like REG 256 (Statement of Facts) or CHP inspection.
Final Thoughts: Get Your REG 31 Form Today
The REG 31 Verification of Vehicle form is a critical step for smooth California vehicle registration in many situations. Downloading the official PDF now ensures you have the correct, current version (REV. 5/2025) ready for your appointment.
Official Download:
REG 31 Form PDF – Verification of Vehicle (Latest)
For the most accurate and up-to-date instructions, always refer to the California DMV website or your local office. Proper preparation with the REG 31 form helps avoid delays and ensures your vehicle is legally registered in California.
All information is based on official California DMV sources as of April 2026.