Customs sign

Customs is an authority or agency in a country responsible for collecting customs duties and for controlling the flow of goods, including animals, transports, personal effects, and hazardous items, into and out of a country. The movement of people into and out of a country is normally monitored by immigration authorities, under a variety of names and arrangements. [Customs. Wikipedia] An information sign is a very legibly printed and very noticeable placard that informs people of the purpose of an object, or gives them instruction on the use of something. [Information sign. Wikipedia]