Customs
Government agency which regulates the flow of goods and collects duties
Customs is an authority or agency in a country responsible for collecting tariffs and for controlling the flow of goods, including animals, transports, personal effects, and hazardous items, into and out of a country. Traditionally, customs has been considered as the fiscal subject that charges customs duties (i.e. tariffs) and other taxes on import and export.
From Wikipedia, under CC BY-SA. More on occurri.