To analyze Canada's Tariff Rate Quota (TRQ) administration, a model of efficient quota administration is put forward. After examining the operation of the Canadian TRQ system for its twenty-one TRQs, conclusions are drawn. In general this system has worked well in Canada. The quotas are almost all filled, and the administration is transparent and not costly for quota-holders to use. Among the international lessons from Canada's experience are that few WTO rules may be needed in this area, aside from steps to ensure the TRQ is fully available to users and can be freely transferred among them.