Answer:
When the federal government regulates a particular field of activity, but also allows a state law on the same topic to stand if it does not conflict with the federal law, the situation is called partial preemption.
Explanation:
The partial preemption takes place when the Federal government assumes powers to regulate an area in particular, with the condition that state law regarding the same topic as federal law has validity if it does not contradict the federal law for the same area.
