Citation:
Field preemption occurs when a higher authority, such as the federal government, occupies a particular regulatory area to the extent that a lower authority, like a state government, cannot enact conflicting laws. This principle ensures uniformity in laws across jurisdictions by preventing states from creating their own regulations in areas that have been federally regulated. Understanding field preemption is crucial when evaluating defenses to tort liability, as it can determine whether state laws can impose liability when federal laws already govern the issue.