(customs) A limitation on the quantity of goods that may be imported into a country from all countries or from specific countries during a set period of time.
(a) Absolute quotas permit a limited number of units of specified merchandise to be entered or withdrawn for consumption in a country during specified periods.
(b) Tariff-rate quotas permit a specified quantity of merchandise to be entered or withdrawn in a country at a reduced rate during a specified period.
(U.S. Customs) In the United States, quotas are established by Presidential Proclamations, Executive Orders, or other legislation. See quantitative restrictions; quota system; visa.