Sacramento VIN Verification: Your 2026 REG 31 Playbook

By Get Vin Verification — DMV-licensed vehicle verifier · August 4, 2026

Somewhere in Sacramento right now there's a pickup with Texas plates in a driveway off Freeport, a wagon from Colorado in an apartment lot in Natomas, and a work van from Nevada parked behind a shop on Folsom Boulevard. All three owners are closer to California plates than they think — and all three are waiting on the same single page of paper.

It's called the REG 31, Verification of Vehicle. It takes about ten minutes to complete, and it's the step that turns a stack of out-of-state paperwork into a California registration. What follows is the Sacramento version: what actually triggers the requirement, who is legally allowed to sign one, the deadlines that apply to your situation, and where the county's four DMV field offices are if you'd rather handle it yourself. Everything here is sourced from the DMV's own Vehicle Industry Registration Procedures Manual and the Vehicle Code — not from a forum thread.

First question: does the DMV even require one?

Not every vehicle needs one, and it's worth ninety seconds to check before you book anything. The DMV publishes an explicit list of when a verification of vehicle is always required — and the short list of cases where it isn't.

If you bought a trailer new and it qualifies for the Permanent Trailer Identification program, you may genuinely be able to skip this step — we broke that down separately in California PTI: Which Trailers Qualify and When You Can Skip the REG 31.

What the inspector is actually doing

A REG 31 isn't paperwork someone fills out from your title. It's a physical inspection, and the form has to be completed from what the inspector can see on the vehicle itself. Every numbered section on the form — all nine of them — needs at least one box checked.

The core of it is confirming your public VIN — on most passenger cars the plate visible through the windshield on the driver's side, though the form has boxes for a door post, the firewall, the steering column and several other locations — and then corroborating it against a second source. On a 1970-or-newer vehicle that second source is one specific sticker, and the rules around it are where driveway visits go wrong.

The two labels — and the model years that decide everything

The inspector checks two different labels, each with its own year cutoff. They are not interchangeable, and failing them has completely different consequences.

The U.S. Federal Certification Label — the DMV manual still calls it the "federal safety label" — is the sticker on the driver's door post or rear door post. It does two jobs: it is the secondary verification of your public VIN, and it certifies the vehicle complies with U.S. Federal Motor Vehicle Safety Standards. It is never used as the primary source of the VIN.

If your vehicle is a 1970 or newer model year and that label is missing, illegible, damaged, altered, or disagrees with your VIN, the verification stops — and it does not go to a DMV field office. Only the California Highway Patrol may search for an alternate VIN and complete the REG 31 in that situation.

This is the detail most Sacramento guides get wrong, and the DMV is partly why: VIRPM §1.165 still prints the pre-2017 line that an alternate VIN "must be located by a DMV employee." That instruction was superseded in March 2017 by DMV notice VIN 2017-08, and the form the verifier actually signs settles it — every one of those boxes carries an asterisk, and the legend reads "DO NOT PROCESS — REFER TO CHP." Drive to Broadway with a missing door label and you will be sent to CHP anyway.

If your vehicle is a 1969 or older model year, none of that applies to you. The federal label was never required on it, so there is nothing to be missing. The REG 31 has a dedicated "Pre-1970" checkbox, it is one of the few boxes in that section with no asterisk, and a licensed verifier completes the form in your driveway like any other vehicle. Off-highway vehicles get a similar pass — they may not carry a federal label and can still be processed, provided the VIN has not been altered.

Worth knowing why a door label goes missing: the most ordinary explanation is a replaced driver's door after a collision. The REG 31 has a "Door Replaced" checkbox sitting right next to the CHP referral legend. If your door has ever been replaced, check for the label before you book a mobile visit.

A few more details from the same manual that catch people out:

• Emission label verification for out-of-state vehicles may be completed by an authorized vehicle verifier or a peace officer, so it is handled in the same visit.
• Parts aren't vehicles. Verifications of incomplete or unassembled vehicles are not acceptable.
• On an electric motorcycle, the serial number on the electric motor is used as the engine number.
• Not every field applies to every vehicle. Axles are recorded only for commercial vehicles and trailers other than camp trailers and trailer coaches. Estimated weight only for trailers other than camp trailers and trailer coaches. Length and width only for camp trailers, trailer coaches, and motorhomes.

Never located your VIN before? Here's where it lives on every vehicle so you know what the inspector will be reaching for.

Who can legally sign your REG 31

This is the part most Sacramento guides get vague about, so here it is exactly as the DMV states it. There are four categories of authorized vehicle verifier — and one of them has a boundary you need to know about.

We're the fourth row. Get Vin Verification™ is a DMV-licensed vehicle verifier, which means the trade-off is honest and worth stating plainly: the DMV will do this for free if you drive to them and wait. What we sell is the visit — the inspection happens where the vehicle already is, at a time that isn't a weekday morning at Broadway.

Straight answer on the boundary: if your vehicle is a revived salvage or revived junk, a licensed verifier legally cannot inspect it — that has to be an authorized DMV employee or the California Highway Patrol. The CHP runs the Salvage Vehicle Inspection Program, and a passing inspection produces a CHP 97C Certificate of Inspection. Bring that to the DMV and the verification requirement is satisfied. Anyone in Sacramento advertising mobile "rebuilt title" verifications is selling something they can't deliver.

The three clocks — and which one is actually running

Almost every "you have 20 days" article about California registration is describing one rule and applying it to everybody. There are really three separate deadlines, triggered by three different events, and mixing them up is how people end up paying penalties they didn't need to pay.

The practical takeaway is the one the DMV itself gives: file the application and pay the fees inside the window even if you're still waiting on the smog certificate or the verification. That's how you avoid penalties while the rest of the package catches up. We went deep on all of this in the complete out-of-state buyer's guide.

Sacramento County has exactly four DMV field offices

If free-and-drive-there is the right call for you, these are your options. Sacramento County has four — fewer than most people assume for a county of roughly 1.6 million people, which is a fair part of why the lines look the way they do.

That geography is the whole reason mobile VIN verification exists here. A verification in Elk Grove, Citrus Heights, or Rancho Cordova means a round trip to another city for a ten-minute inspection. Our standard Sacramento County visit is $85 for one vehicle — a $50 travel fee plus $35 per vehicle, so a second vehicle at the same address is $120 total and a third is $155. Placer and Yolo County cities are quoted separately. The service area page lists every city we cover and what each one runs.

What Sacramento registration actually costs you

The verification is one line item. The one that surprises people is use tax, which California charges on just about any vehicle you didn't buy from a California dealer — out-of-state purchases and private-party sales alike — at the rate for the address where the vehicle will live. In this region that rate swings by a full 1.5 points across the cities below, depending on which side of a city limit you land on.

On a $30,000 truck that's the difference between roughly $2,325 in Folsom and $2,775 in Galt. Worth knowing before the DMV tells you.

Two things that can shrink that number, and both get missed. If you already paid sales or use tax to the state you bought in, you get credit for it — bring DMV the purchase agreement showing the amount and you pay only the difference. And buying from a parent, grandparent, grandchild, child, spouse, or domestic partner is exempt from use tax entirely. Note also that the figures above are calculated on the full purchase price, which the state defines to include trade-in value and any debt you assume — not just the cash that changed hands.

Two more line items to plan for while you're at it. Smog: most out-of-state vehicles need a certification at first registration — gasoline 1976 and newer, diesel 1998 and newer under 14,001 lbs GVWR — while motorcycles and trailers are exempt. The eight-model-year exemption Californians lean on at renewal does not carry over to a nonresident vehicle's first registration. Don't get it done too early, either: a smog certificate is only good for 90 days. Insurance: California's minimums rose on January 1, 2025 to 30/60/15 — $30,000 per person, $60,000 per incident, $15,000 property damage. Plenty of out-of-state policies sit below that, though not all; Texas minimums, for instance, already clear it.

Ten minutes of prep that saves the visit

Whether a verifier is coming to you or you're driving to Broadway, this is the difference between a smooth inspection and a wasted trip. Tap each one as you go.

Sacramento VIN verification FAQ

Let's get it verified

A VIN verification is a small step that unlocks a big one. Figure out whether you need one, get the vehicle and documents ready, and get the REG 31 signed by someone actually authorized to sign it — then file inside your window and go enjoy the fact that you live somewhere with a river, a delta breeze, and no snow to shovel.

If the free-and-drive-there route works for your schedule, take it; that's a legitimate option and we'll tell anyone who asks. If it doesn't, that's what mobile VIN verification is for — we come to Sacramento, Carmichael, Folsom, Elk Grove, Rancho Cordova, Citrus Heights, Roseville, and the rest of the region, and complete the REG 31 where your vehicle already sits. Book a verification and let's get you on California plates.

Rules, rates, and fees change. For the current authoritative details, always confirm with dmv.ca.gov.