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Data Sources

Where we get our information

CustomsCheck combines AI-generated guidance with data drawn from official government customs authorities and international trade organisations. Below are the primary sources and services we use. Always verify critical customs information directly with the relevant authority before travelling.

  • World Customs Organization (WCO)

    International Standards

    International standards body for customs procedures, the Harmonized System (HS) commodity codes, and cross-border trade facilitation.

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  • IATA Travel Centre

    Travel Regulations

    Airline and travel industry data covering passenger regulations, restricted items, and country-specific entry requirements.

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  • U.S. Customs and Border Protection (CBP)

    National Customs Authority

    Official U.S. government source for customs declarations, duty-free allowances, prohibited and restricted items for travellers entering the United States.

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  • UK Border Force / HMRC

    National Customs Authority

    Official UK government guidance on customs allowances, duty rates, and restricted goods for travellers arriving in Great Britain and Northern Ireland.

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  • European Union Taxation and Customs Union

    Regional Customs Authority

    EU-wide customs rules, duty-free thresholds, VAT regulations, and prohibited goods lists for travel within and into the European Union.

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  • Australian Border Force (ABF)

    National Customs Authority

    Australian government customs and biosecurity rules, including strict biosecurity declarations and duty-free allowances for incoming travellers.

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  • Google Gemini (AI)

    AI & Technology

    Google's multimodal AI model, used to power the Item Scanner and to generate customs guidance results. AI outputs may be inaccurate — always verify with official sources.

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  • Google AdSense

    AI & Technology

    Google's advertising platform used to serve ads on CustomsCheck, enabling the service to remain free for all users.

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Customs regulations change frequently. CustomsCheck is not affiliated with any of the above organisations. Always consult official sources for the most up-to-date requirements.