1. Tariffs and duties: Customs laws specify the rates and types of duties and tariffs that apply to imported goods. These duties are often based on the value, quantity, or weight of the goods being imported.
2. Import and export regulations: Customs laws outline the procedures and requirements for importing and exporting goods, including documentation, licensing, and permits. They may also specify restrictions or prohibitions on certain types of goods, such as firearms, endangered species, or controlled substances.
3. Customs valuation: Customs laws provide guidelines for determining the customs value of imported goods, which is used to calculate duties and taxes. This may involve assessing the transaction value, deducting certain costs, or using alternative valuation methods when the transaction value is not available or reliable.