In recent years, the growth of the international business economy, and especially the flow of imported / exported goods, sustaining national economic, is increasingly boosting from year to year. In response to this growth and in compliance with strategy on Customs Reform and Modernization (2003-2008), General Department of Customs and Excise selected and signed a project paper on Automated System for Customs Data (ASYCUDA World - AW) with UNCTAD on April 2006 under Trade Facilitation and Competitiveness Project (TFCP) and with financial support from the World Bank. AW Customs Automation is a computerized system used for speeding process of clearing goods from Customs and producing accurate trade statistics.

      Referring to project document No CMB/OT/6AG dated 18th April 2006, General Department ofCustoms and Excise established a National Project Team (NPT) consisting of six Customs officers as member and one Deputy Director General as National Project Director. This NPT works full time with Experts in exploring, amending, and developing forms and relevant Customs procedures to make them comply with international standards for the practice of this system. Customs' Technical Advisory Group (TAG) has duties of giving advice, reviewing and discussing on requests from NPT for amendment and addition before forwarding to Project Steering Committee (PSC) for review and endorsement.

The result of achievements includes development of Single Administrative Document (SAD) known as Customs declaration, SAD explanatory notes, reference documents used with SAD, legal instruments and relevant instructions. Actually, the manual implementation of SAD started from the beginning of 2008 and the pilot implementation of AW system in Sihanouk Ville started on 1st May 2008.

Now ASYCUDA has centralized its server to customs head quarter, and recently extended its operation to many check points.

Below figure is the Process diagram of ASYCUDA.