【答案解析】As the challenge of meeting China's Total Emissions Control (TEC) goals becomes more serious, the potential for a sector-based allocation of reduction responsibilities is emerging. In addition, according to the newly revised Clean Air Act (CAA), emission permits have finally been granted legal status and will play an instrumental role in assigning reduction responsibilities and in enforcement. // In line with these two new policy developments. Environmental Defense has established agreements with different departments of SEPA and is planning to coordinate both initiatives through newly established demonstration projects. // In a most recent official document issued by SEPA, Environmental Defense is entrusted to partner with SEPA to further expand the pilots of emission trading in four provinces and three metropolitan areas in China to prepare experience to be applied in achieving the ambitious sulfur dioxide control targets set up in the 10th five-year plan. It is the expectation of Environmental Defense that these new demonstration projects will provide a flexible and integrated approach to the solution of trans-boundary environmental concerns. // Environmental Defense has enjoyed a long sound relationship with legislators at the state and national level in the United States. We hope that experience and the experience in environmental policy development and implementation will be useful in creating emissions trading with Chinese characteristics. On that basis, I want to make some concluding recommendations for your own work here in the Chinese People's Political Consultative Conference. // First, emissions trading needs formal legal support to resolve any remaining uncertainty about its use in China. Second, it would be important to begin to build national infrastructure to facilitate inter-provincial cooperation on TEC. An example of such infrastructure is a national registry or tracking system for TEC quotas. // Third, it is necessary to consider creating allocations longer than 5 years. For most companies, capital investment is significant and long-lived. To get the most from these investment decisions, environmental obligations should be given over a reasonable timeframe. Lastly, it is critical to establish an effective compliance system. Without real consequences for noncompliance, the engine that is emissions trading will not function. // (Excerpt from "Emissions Trading in China" by Mr. Zhang Jianyu, China Representative of Environment Defense China Program, USA at the annual conference of Boao Asian Forum in 2002)