Quota is a quantitative restriction on some imports, i.e. farm products, pharmaceuticals, glass products etc. but most well-known products that are subject to a quota are garments and textile articles in general.
Beware – without “Quota” documentation attached with your shipment’s other documents, the goods will not be allowed to enter the United States!
You must do research through your Customs Broker before you buy or check with the US Dept. of Commerce on the current status and/or forthcoming changes to the quota regulations on specific products you intend to import!
Do not buy merchandise unless you know you can get the necessary quota documentation to accompany your shipment, otherwise your goods may sit for months at the point of origin, the place where you bought and want to ship from into the United States, until you can get the necessary documents!