Abstract: Administrative discretion has been expanding while risk regulation has become one of the most important governmental tasks. Reflections on the ATA case would disclose that two traditional approaches of American judicial review, “the intelligible principle of delegation”＆“the reasonability of discretionary power”, are two of many functionally alternative options. The effectiveness of these alternative options depends on whether we have correct understanding of the complicated risk regulation practices or not.

Key words: American Trucking Associations, et al., v. EPA, Risk Regulation, Judicial Review, Ad-ministrative Discretion

摘要： 风险社会中，风险规制成为政府的重要任务之一，行政裁量权由此进一步扩张。对美国货运协会案的思考可揭示，美国公法上通过司法审查规范行政裁量权的两种传统进路，即“审查授权的可理解性”与“审查裁量的合理性”，在功能上可以相互替代，同时也并未排除他种可能；而这些可替代方案的有效性，从根本上取决于对复杂的当代风险规制活动是否具有符合实际的理解。

关键词: 美国货运协会案, 风险规制, 司法审查, 行政裁量