The article discusses EU laws on the movement of goods and the customs union. It covers topics like the common customs tariff, origin and valuation of goods, customs procedures, elimination of customs duties, and state monopolies. The main goal is to ensure smooth trade between EU member states by regulating customs processes and eliminating barriers to trade. Key findings include the establishment of the common customs tariff, rules for assigning goods to customs-approved treatments, and the elimination of customs duties and restrictions on trade between member states.