Through ASEAN Free Trade Area (AFTA), ASEAN has achieved significant progress in the
removal of tariffs. However, free flow of goods would require not only zero tariffs but the removalof non-tariff barriers as well. In addition, another major component that would facilitate free flow of goods is trade facilitation measures such as integrating customs procedures, establishing the ASEAN Single Window, continuously enhancing the Common Effective Preferential Tariffs (CEPT)Rules of Origin including its Operational Certification Procedures, and harmonising standards and conformance procedures.