Editorial Policy & Standards

Our commitment to accuracy, factual verification, human accountability, and transparent tariff research.

1. Primary Principles of DutyDecoder Content

DutyDecoder publishes technical trade intelligence, customs calculation tools, and educational guides for international importers, e-commerce sellers, and logistics coordinators. Because customs misclassifications and rate errors carry significant financial and regulatory consequences, our editorial integrity rests on three pillars:

Primary Authority Only

Every tariff percentage, VAT threshold, and customs fee cited on DutyDecoder traces directly to an official government agency or statutory publication.

Independence

Our duty rates and classifications are completely independent of commercial sponsorship, advertising agreements, or carrier partnerships.

Continuous Revision

We track international gazettes, Federal Register notices, and official customs communiqués to revise rates promptly when regulations evolve.

2. Artificial Intelligence Policy & Human Accountability

DutyDecoder employs specialized natural language processing and inference models (Groq Llama 3) to perform real-time semantic matching between everyday product descriptions and the 5,000+ headings of the Harmonized System.

Our strict governance rules regarding AI include:

  • AI Assists, Humans Govern: AI is used for terminology mapping and multi-language normalization. All underlying customs rules, mathematical formulas, and legal disclaimers are engineered and verified by human specialists.
  • Mandatory Legal Framework: AI classification algorithms are strictly bound to the WCO General Rules of Interpretation (GRI 1–6). If a model output cannot cite an applicable GRI rule or chapter heading note, it is rejected.
  • Zero Hallucinated Rates: AI models are strictly prohibited from generating tariff percentages. Duty rates must resolve to a verified database row originating from an official government schedule.
  • Human Curation of Indexed Content: Programmatic or AI-generated pages must meet our strict Quality Gate before being included in our searchable index. Pages failing quality criteria are marked noindex.

3. Research and Sourcing Standards

All guides, articles, and documentation on DutyDecoder are created following structured research protocols:

  1. Statutory Tariff Reference: Verification against official publications including USITC Harmonized Tariff Schedule, EU TARIC, UK Trade Tariff Service (HMRC), Canada CBSA Customs Tariff, and national customs agencies.
  2. Incoterms 2020 Compliance: Cost breakdowns and delivery terms conform to the International Chamber of Commerce (ICC) Incoterms 2020 definitions (FOB, CIF, DDP, DAP, EXW).
  3. Worked Numerical Examples: Technical concepts (such as CIF vs FOB duty valuation or compounding VAT) must be illustrated with concrete, verifiable arithmetic examples.
  4. Clear Date & Citation Footnotes: Every article and guide clearly displays its publication and latest review date alongside links to authoritative source materials.

4. Corrections & Discrepancy Reporting

International trade law is dynamic. When national customs authorities modify tariff classifications, emergency surcharges, or de minimis exemptions, we strive to update our databases promptly.

We encourage users, customs brokers, and importers to notify us of any perceived discrepancies. Our correction protocol is as follows:

  • Submit reports via our Contact Form (select “Tariff Rate Correction / Dispute”) or email corrections@dutydecoder.com.
  • Include the specific URL, product name, destination country, and statutory citation if available.
  • Our editorial team cross-references the report against the national authority within 48 hours. If verified, the database rate is updated immediately and a correction note is logged.

5. Authorship & Attribution

All published guides are authored and reviewed by the DutyDecoder Editorial Team under the direction of Lead Engineer Umar Farooq and international logistics advisors. For detailed data sources and methodology, visit our Data Sources Register and Methodology Guide.