各省、自治区、直辖市和计划单列市国家税务局:2004年2月以来,总局采取了一系列加强对用于增值税抵扣的海关完税凭证管理的措施,有效地堵塞了增值税征管的漏洞。但是海关完税凭证电子数据的比对相符率仍处于较低状态,其比对相符率的高低很大程度上决定于电子数据的采集质量,特? State tax bureaus of provinces, autonomous regions, municipalities directly under the Central Government and cities specifically designated in the state plan: Since February 2004, the SAIC has taken a series of measures to strengthen the management of customs duty receipts for value added tax deductions, effectively blocking the loopholes in VAT collection and administration. However, the consistency of the electronic data of customs duty certificates is still in a low state. The consistency of the electronic data of customs duty-paying certificates depends largely on the quality of electronic data collection.