Versioned training data

Tariffs, fees & tax rules

Filter by the client's travel date. The engine is designed to teach source verification, not replace the issuing authority.

Live-sale rule: Re-open the official source or supplier contract before confirming a live price. “Last verified” is an audit field, not a guarantee that a rate has not changed.

Tariff records

CountryAuthority / productMarketAmountSeasonValidityVerifiedSource

Tax rules

Official source registry