Port VIN format check

Client

Port and logistics teams paste VIN columns from shipping manifests. Format check runs mod-11 per row locally—customs clearance and import eligibility require separate government systems.

Manifest QA before broker submit

Export the VIN column as one frame per line, paste, read pass/fail. Fix failing rows before PDF manifests go to brokers—cheaper than rework after filing.

Privacy: parsing runs only in your browser. This page does not query DMV, insurance, or manufacturer databases—only the published mod-11 rule for the ninth character.
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After removing spaces and hyphens, the frame must be exactly 17 characters. Letters I, O, and Q are forbidden everywhere. Position 9 (index 8) is the check symbol: decimal 0–9 or X for remainder ten. Each symbol maps to a numeric value, is multiplied by a fixed weight for its position, products are summed, and sum mod 11 must equal the check symbol’s value (X → 10).

Result

Passes check digit — weighted sum mod 11 is 10; expected X.

  • WMI (positions 1–3): 1HG
  • Attributes (4–8): BH41J
  • Check (9): X
  • Model year code (10): M
  • Plant (11): N
  • Sequential (12–17): 109186

Common use cases

  • Pre-validate manifest CSV before customs broker handoff.
  • Catch transposed digits on container intake spreadsheets.
  • QA OCR output from bill-of-lading scans.

Common mistakes to avoid

  • Assuming format pass means import approval

    Emissions, safety, and duty status are separate regulatory checks.

  • Applying US mod-11 to non-17-character import stamps

    Some markets use different lengths pre-standardization—confirm jurisdiction.

FAQ

Does port check query customs?

No—local mod-11 and length guards only.

Common search terms

Phrases people search for that match this tool. See the full long-tail keyword index.

  • vin check digit verifier online
  • validate vin number mod 11 free
  • ninth position vin checksum browser
  • iso 3779 vin check digit calculator
  • vehicle identification number check digit locally

More tools

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