Mobile VIN Verification Requirements
Typical requirements you need to know before scheduling your mobile VIN verification appointment. Review the requirements below to ensure a smooth, successful inspection.
Mobile Vehicle Verifier
Get your VIN verification completed before visiting the DMV. Save time by walking in with all required paperwork ready to submit with our DMV-licensed mobile vin verification service. Serving the Greater Sacramento Area.
Top Reasons You Need Verification
Understanding the circumstances where a VIN inspection is mandatory.
Non-Resident Vehicles (Out-of-State)
If your vehicle was last registered in a state other than California, you'll need the **VIN verified** before the DMV will issue license plates.
Required Document Check:
You generally need to provide an **out of state registration document or title/MCO** for our record-keeping and VIN comparison.
**Exclusion:** We cannot verify Salvaged Vehicles.
Unavailable Records (Previously CA Registered)
If your vehicle was last registered or titled in CA but is no longer in the DMV database, you'll need **at least one** of the following:
IMPORTANT
If you do not have one of these, you must go to DMV first to see what your options are. They may issue authorization on an RDF (Incomplete Application) using reason code #5 which allows a licensed vehicle verifier to verify your vehicle.
Brand New / Never Registered or Titled
For a **brand-new vehicle** from an out-of-state dealer (never titled or registered), you usually need to show the **Manufacturer's Certificate of Origin (MCO or MSO) or a Dealer Registration.**
Requirements by Vehicle Type
Select your vehicle type to see the specific labels, VIN locations, and inspection requirements that apply.
Applies to the following vehicles:
Primary VIN Location
1970 & Newer: Typically visible through the windshield on the dashboard (driver side).
1969 & Older: Stamped on the frame or on a metal plate. Must have at least one visible VIN location.
Federal Certification Label
Required on 1970 & newer vehicles with an unladen weight of 8,000 lbs or less.
Located on the driver-side door or door jamb. Must be legible — removal or illegibility prevents verification.
The label contains a statement of compliance with Federal Motor Vehicle Safety Standards (FMVSS) and includes the vehicle's VIN.
The VIN on the Federal Certification Label must match the primary VIN on the vehicle and the VIN on the supporting document (title, registration, or MCO).
1969 & Older: Not required to have a Federal Certification Label.
Emissions Control Label
Cars & Light Trucks: 1968 & newer — typically found under the hood.
Heavy-Duty Vehicles: 1979 & newer — engine compartment or driver's door.
A missing emissions label does not prohibit verification. However, a missing Federal Certification Label on vehicles ≤8,000 lbs unladen does prohibit verification.
Engine Number
Not required for cars and trucks. Engine numbers are only recorded on the REG 31 for motorcycles and OHVs.
Additional Observations (REG 31)
Primary VIN Location
Stamped on the frame, typically near the steering head (headstock). Must be permanently affixed and legible.
Federal Certification Label
Required on 1970 & newer street-legal motorcycles with an unladen weight of 8,000 lbs or less.
Location varies by manufacturer — commonly on the frame, near the steering head, or on the swingarm.
The label contains a statement of compliance with Federal Motor Vehicle Safety Standards (FMVSS) and includes the vehicle's VIN.
The VIN on the label must match the primary VIN stamped on the frame and the supporting document.
Emissions Control Label
1978 & newer motorcycles should have an emissions label, typically located on the frame.
Engine Number — REQUIRED
The engine number must be physically read and recorded on the REG 31 form for all motorcycles. For electric motorcycles (on-highway), the electric motor number is used instead of an engine number.
CHP Verification Required
Licensed vehicle verifiers cannot perform VIN verification on motorcycles with engine swaps or unavailable California records. These must be referred to the California Highway Patrol (CHP) for VIN and engine number verification.
Additional Observations (REG 31)
Applies to the following vehicles:
Primary VIN Location
Stamped on the frame, on a metal plate, or on a label affixed by the manufacturer — typically on the tongue (A-frame) or main frame rail. Must be permanently affixed and legible.
Federal Certification Label
Required on 1970 & newer trailers with an unladen weight of 8,000 lbs or less.
Typically on the forward half of the left (road) side. Must be legible.
The label contains a statement of compliance with Federal Motor Vehicle Safety Standards (FMVSS) and includes the trailer's VIN.
The VIN on the label must match the primary VIN on the frame/plate and the supporting document.
Emissions Control Label
Not applicable. Trailers do not have engines and are not subject to emissions label requirements.
Engine Number
Not applicable. Trailers have no engine — this field is left blank on the REG 31.
Additional Observations (REG 31)
Applies to the following vehicles:
Primary VIN Location
Stamped on the frame. Must be permanently affixed and legible.
17-Digit VIN — What You Need to Know
Federal law (49 CFR Part 565) mandates a standardized 17-character VIN only for motor vehicles — defined under 49 U.S.C. §30102 as vehicles "manufactured primarily for use on public streets, roads, and highways." OHVs built solely for off-highway use fall outside that federal definition, so 49 CFR Part 565 does not apply to them. The California DMV confirms this in VIRPM §1.175: "certain motor vehicles incidentally operated on a highway, such as… off-highway vehicles (OHV)… are not required to have a 17-digit VIN."
In practice, most modern OHVs from major manufacturers do carry a 17-digit VIN — brands voluntarily adopted the standard for consistency and parts tracking. Older models and some smaller manufacturers use shorter serial numbers. California DMV accepts either format for OHV registration.
Bottom line: A serial number shorter than 17 characters is not invalid for an OHV. It does not affect the verifier's ability to complete the REG 31.
Federal Certification Label
OHVs are exempt from the Federal Certification Label requirement.
Emissions Control Label
2003 & newer OHVs should have an emissions control label, typically located on the frame.
Engine Number — REQUIRED
The engine number must be physically read and recorded on the REG 31 form for all gas-powered OHVs.
Additional Observations (REG 31)
What Is an eMOTO?
Under CVC 436.1, an off-highway electric motorcycle (eMOTO) must meet all of the following criteria:
Primary VIN Location
Stamped on the frame, usually near the steering head. Must be permanently affixed and legible.
Federal Certification & Emissions Labels
Federal Certification Label: Not required — eMOTOs are classified as OHVs and are exempt from the federal certification label requirement.
Emissions Control Label: Not required — and not possible. Here is why:
The DMV's guidance that "OHVs 2003 and newer require an emissions label" was written for combustion-engine vehicles and predates electric OHVs as a legal category. The actual regulations tell a different story:
- 40 CFR 1051.105 — the federal exhaust emission standard for OHV motorcycles — establishes standards only for gasoline, natural gas, and alcohol-fueled engines. Electric motors are not mentioned. The regulation simply does not apply to them.
- 40 CFR 1051.135 — the federal label requirement — requires the label to display an EPA engine family designation, exhaust emission standards, and operating fuel type. An electric motor has none of these. There is nothing to put on the label.
- 13 CCR 2413(b)(2) — California's own emissions label regulation — states: "Any off-road motorcycle… that are exempt from exhaust emission standards… shall also be exempt from the requirements of this section." Since no exhaust emission standard exists for electric motors, eMOTOs fall within this exemption by operation of law.
The absence of an emissions label on an eMOTO is correct and expected — it is not a deficiency and does not affect verification.
Motor Number — NOT REQUIRED (2-Wheel eMOTOs Only)
Under CVC 436.1(b), effective January 1, 2026, electric off-highway motorcycles are exempt from the motor number requirement. Unlike gas-powered OHVs (which require an engine number) and on-highway electric motorcycles (which require a motor number), eMOTOs do not require either.
Electric ATVs, UTVs & 4-Wheel OHVs — Different Rules
CVC 436.1 applies only to 2-wheel electric OHV motorcycles. Its definition requires handlebars, a straddle seat, and exactly two wheels — which explicitly excludes ATVs, UTVs, side-by-sides, and other 4-wheel electric OHVs.
For those vehicles, no equivalent motor number exemption exists under current California law. CVC 38040 requires frame and engine numbers for ATVs with no electric carve-out, and the REG 31 engine number field covers all OHVs. Until the Legislature extends a similar exemption to 4-wheel electric OHVs, a motor number reading is required for those vehicles.
SB 586, signed by Governor Newsom on October 10, 2025, created California Vehicle Code Section 436.1. Before this law, electric off-highway motorcycles existed in a regulatory gray area — they were not classified as off-highway motor vehicles and were not subject to OHV registration, safety helmet requirements, or trail access regulations.
CVC 436.1 formally classifies eMOTOs alongside their gas-powered counterparts, bringing them under existing OHV safety and registration rules while recognizing that electric motors do not carry traditional engine numbers.
Source: California Vehicle Code § 436.1
Green Sticker: eMOTOs receive a green OHV identification sticker upon registration, as they produce zero emissions. This sticker is required for legal riding at California OHV parks and trails.
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