Who is authorized to complete the REG 31 form for VIN verification in California?

Only DMV staff, peace officers, licensed verifiers, or Tags Clinic’s certified verifiers in San Diego can complete the form. Applicants cannot fill it out themselves to ensure impartial verification.

When is a VIN verification required using the REG 31 form?

It’s needed for out-of-state vehicles, salvaged vehicles, vehicles with title discrepancies, or those lacking a federal VIN label before registration. Tags Clinic identifies when verification is necessary.

How much does a VIN verification cost in 2025?

Tags Clinic includes VIN verification in our same-day service fee, typically $50–$100 depending on the transaction. DMV fees vary by registration type. Tags Clinic confirms costs upfront.

Can I complete the REG 31 form myself to save time?

No, self-verification is not allowed, as it requires an authorized verifier to inspect the VIN. Tags Clinic’s certified verifiers in San Diego handle the process efficiently.

How long does the VIN verification process take?

Tags Clinic completes VIN verifications in minutes during same-day registration in San Diego, while DMV appointments may take hours. Our service eliminates wait times and ensures accuracy.

What documents are needed for VIN verification?

Provide the vehicle’s title, registration, or bill of sale. The vehicle must be present for inspection. Tags Clinic verifies all documents and VIN locations.

How does Tags Clinic streamline VIN verification?

Tags Clinic’s Pain Free DMV service in San Diego inspects VINs (dashboard, door jamb, or engine), completes the REG 31 form, and submits it with registration documents, avoiding DMV visits.

California DMV Form

REG 31 — Verification of Vehicle

The REG 31 form is used for VIN verification of vehicles, required for out-of-state registrations, salvaged vehicles, or title corrections. It must be completed by an authorized verifier. Tags Clinic in San Diego offers certified VIN verification and same-day registration services, bypassing DMV visits.

Download PDF Get Help With This Form Call (619) 777-9046

Tags Clinic is a licensed California DMV Business Partner. Tags Clinic is not owned or operated by the California DMV.

View & print REG 31

Free Tags Clinic branded copy — open below or download before your visit to San Diego or Escondido.

Verification of Vehicle sample illustration

Reference image for Verification of Vehicle

How to Complete This Form

Instructions

Bring your vehicle to Tags Clinic for a certified VIN verification.
Provide vehicle details, including VIN, make, model, and year.
Bring proof of ownership, such as the title or registration.
Our authorized verifiers will inspect the VIN and complete the REG 31 form.
Combine with other DMV documents for full registration or title processing.
Visit Tags Clinic in San Diego for fast, same-day VIN verification and submission.

Frequently Asked Questions

When You Need This Form

The REG 31 form is required for VIN verification of out-of-state vehicles, salvaged vehicles, vehicles with title errors, or those lacking federal VIN labels before registration in California. It ensures vehicle identity for cars, trucks, or motorcycles. Tags Clinic in San Diego provides same-day verification and registration.

Why This Form Exists

The REG 31 form verifies a vehicle’s identity by confirming the VIN matches California DMV records, preventing fraud and enabling legal registration. It ensures compliance with state regulations. Tags Clinic’s Pain Free DMV service in San Diego offers fast, accurate VIN verification without delays or complications.

How to Fill Out This Form

Bring your vehicle to Tags Clinic in San Diego, as applicants cannot complete the REG 31 form themselves. Our certified verifiers inspect the vehicle identification number (VIN) on the dashboard, door jamb, or engine block, then fill out the form with vehicle details, including make, model, and year. Provide the title, registration, or bill of sale. Tags Clinic submits the form with other registration documents, ensuring compliance with California DMV requirements.

Common Mistakes to Avoid

Common issues with the REG 31 form include obscured or unreadable VINs, missing ownership documents like titles or bills of sale, or attempting self-verification, which is prohibited. Other errors involve discrepancies between the VIN and documents. These mistakes delay registration. Tags Clinic in San Diego ensures VIN accessibility, verifies all documents, and uses certified verifiers for error-free processing.

Executive Summary

Key Takeaways

Bring your vehicle to Tags Clinic for a certified VIN verification.
Provide vehicle details, including VIN, make, model, and year.
Bring proof of ownership, such as the title or registration.
Our authorized verifiers will inspect the VIN and complete the REG 31 form.

Important Facts

Form: REG 31 — Verification of Vehicle
PDF: Free download available
Help: Walk-in at San Diego & Escondido
Business type: Licensed DMV Business Partner

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