Pre-emption

In Canadian law, a right of first refusal to purchase property: Cultural Property Act, CQLR c B-4. In US law, conflict between the law of a lower level jurisdiction such as a municipality and the law of a higher level of government such that the lower level law is rendered invalid; see CSX Transportation, Inc v City of Plymouth, 86 F3d 626 (6th Cir 1996)

Reference

Cultural Property Act, CQLR c B-4

CSX Transportation, Inc v City of Plymouth, 86 F3d 626 (6th Cir 1996)