Fourteen states and the District of Columbia allow unauthorized immigrants to obtain driver's licenses. Using variation in the timing and location of these policy changes, we show these Unauthorized Immigrant License Polices (UILPs) are associated with a 1% increase in both the number of licensed drivers and liability insurance coverage, although we do not document a statistically significant relationship with auto insurance claims. Nor do we detect a significant relationship between UILPs and the number of miles driven, vehicle registrations, air quality, or travel behaviors. Overall, our results are consistent with UILPs licensing unauthorized immigrants who were already driving. (JEL R48, G22, K37)

中文翻译：

---

未经授权的移民对驾驶员执照的访问和自动保险的覆盖范围

十四个州和哥伦比亚特区允许未经许可的移民获得驾驶执照。使用这些政策更改的时间和地点的变化，我们显示出这些未经许可的移民许可政策（UILP）与许可驾驶员数量和责任保险覆盖率均增加了1％，尽管我们没有记录统计上的显着关系汽车保险索赔。我们也没有发现UILP与行驶里程数，车辆登记，空气质量或出行行为之间的显着关系。总体而言，我们的结果与UILP对已经驾车的未经许可的移民进行许可相一致。（ JEL R48，G22，K37）