# VINDECODE (vindecode.online)

> VINDECODE is an independent vehicle identification reference and interactive utility suite maintained by the **Vehicle Identification & Statutory Telemetry Desk**. It provides client-side U.S. check-digit validation under 49 CFR § 565.15, interactive 17-position VIN structure mapping, manufacturer-submitted vehicle specification lookups via the public NHTSA vPIC API, and side-by-side 12-field VIN comparison matrices with explicit data-scope boundaries.

## Main Pages

- [VIN Decoder Online — Decode a Vehicle VIN Free](https://vindecode.online/): Decode full or partial 17-character VINs through NHTSA vPIC with instant local U.S. check-digit verification and general recall campaign context.
- [About VINDECODE — Data Scope & Editorial Governance](https://vindecode.online/about/): Data sources, NHTSA vPIC coverage boundaries, and EU AI Act Article 50 / 50(4) editorial transparency policy.

## Content Categories

- **VIN Decoding & Lookup**: Full (17-character) and partial (3–16 character or `*` wildcard) NHTSA vPIC manufacturer attribute decoding.
- **49 CFR Part 565 Check-Digit Mathematics**: Client-side modulo-11 check-digit calculation, character transliteration tables, and position weights.
- **VIN Structural Reference**: WMI (positions 1–3), VDS (positions 4–8), U.S. check digit (position 9), and VIS (positions 10–17) mapping.
- **Side-by-Side Specification Comparison**: 12-field semantic comparison matrix for two VINs.

## Tools & Features

- [VIN Check Digit Calculator: U.S. Modulo 11](https://vindecode.online/tools/vin-decoder-calculator/): Standalone browser-local check-digit calculator and 17-row worked example under 49 CFR § 565.15 (zero network requests).
- [VIN Decoder Chart: 17 Positions and Meanings](https://vindecode.online/tools/vin-decoder-chart/): Interactive local 17-position WMI, VDS, check-digit, and VIS structure explorer.
- [How to Use a VIN Decoder: A Step-by-Step Guide](https://vindecode.online/tools/vin-decoder-guide/): Four-step workflow for locating, format-checking, decoding, and verifying vehicle identity attributes.
- [Compare VINs: Vehicle Specification Matrix](https://vindecode.online/tools/vin-decoder-matrix/): Side-by-side 12-row specification comparison table powered by NHTSA vPIC manufacturer records.

## Legal & Governance

- [Privacy Policy](https://vindecode.online/privacy-policy/): Details on NHTSA vPIC API requests, shareable VIN URLs, and GDPR Consent Mode v2 controls.
- [Terms of Service](https://vindecode.online/terms-of-service/): Usage terms, NHTSA data caveats, and statutory safe-harbor disclosures.
- [Complete HTML Sitemap](https://vindecode.online/sitemap/): Full human- and crawler-accessible directory of all routes on vindecode.online.

## Technical

- **XML Sitemap Index**: https://vindecode.online/sitemap-index.xml
- **XML Sitemap**: https://vindecode.online/sitemap.xml
- **HTML Sitemap**: https://vindecode.online/sitemap/
- **Media RSS Feed**: https://vindecode.online/rss.xml
- **Robots Policy**: https://vindecode.online/robots.txt
- **Full LLM Specification**: https://vindecode.online/llms-full.txt

## Editorial Policy

All reference guides, 49 CFR Part 565 mathematical formulas, and interactive VIN tools on VINDECODE are maintained by the **Vehicle Identification & Statutory Telemetry Desk**. In compliance with Regulation (EU) 2024/1689 (the EU AI Act), Article 50 and Article 50(4), AI-assisted drafting and formatting workflows undergo mandatory human editorial oversight and human editorial verification against 49 CFR § 565.15 and official NHTSA vPIC documentation prior to publication. Full institutional editorial and legal responsibility is retained by the Vehicle Identification & Statutory Telemetry Desk. See https://vindecode.online/about/#editorial-standards.