How does customs office get its name?

The customs office derives its name from the Word "customs," which refers to the duties and taxes imposed on goods when they are imported or exported. Historically, the term "custom" referred to the customary fees or taxes collected by authorities for the privilege of trading. Over time, the customs office became the designated governmental agency responsible for enforcing trade regulations, collecting tariffs, and monitoring the flow of goods across borders. Thus, the name reflects its primary function in managing and regulating international trade.