Rules of Origin Respecting the General Preferential Tariff and Least Developed Country Tariff Post date 13 March 2015 The following is available on the Canada Border Services Agency. D11-4-4, Rules of Origin Respecting the General Preferential Tariff and Least Developed Country Tariff ← Tariff Classification of Goods Using Bluetooth® Technology → Canada–Korea Free Trade Agreement (CKFTA) Rules of Origin