Law Commons^™

Null Preemption, Jonathan R. Nash

Faculty Articles

This Article proceeds as follows. In Part I, I introduce the concept of null preemption. I discuss in greater detail the case of regulation of motor vehicle tailpipe greenhouse-gas emissions as a case study of null preemption. In Part II, I explore the contours of null preemption, and then describe, and distinguish among, several paradigmatic settings in which null preemption may arise.

In Part III, I consider the normative case for null preemption. I conclude that the case is narrow. I also consider concerns of institutional choice and argue that even those who generally defend agency preemption of state law …