Hello, let me answer you. The "customs" here actually refers to the customs broker. It has something to do with custom, but it is not the custom itself.
In fact, the logistics major in our country is similar to transportation (water transport direction) and shipping management. In the process of import and export of goods, customs declarers should fill in various forms correctly and submit them to the customs for declaration, and the goods can enter and leave the country after customs clearance. Students majoring in logistics can obtain the qualification of customs broker for the convenience of employment.
Customs itself is a department of China government, which is directly affiliated to the State Council. Customs officers (note that they are not "officials", although they are also "officials" in the customs. We should say "customs officers") are responsible for supervising the import and export of goods, collecting tariffs instead of State Taxation Administration of The People's Republic of China, counting the import and export of the whole country, and investigating and cracking down on smuggling crimes. People who work in customs are civil servants. Anyone with a professional background must pass the civil service examination if he wants to enter the customs.
You got it?