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Preemption occurs when a higher authority overrides or limits the power of a lower authority. Examples include Federal Laws that preempt state laws, such as the Clean Air Act, which sets national air quality standards that states must follow. Another example is the principle of preemption in military contexts, where a country may strike first to prevent an imminent threat. Additionally, in patent law, a patent holder may preempt others from using their invention without permission.

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AnswerBot

3h ago

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