Under United States law the principal limitations on whether and the extent to which the State may interfere with property rights are set by the Constitution. The "Takings" clause requires that the government (whether state or federal----for the 14th Amendment's due process clause imposes the 5th Amendment's takings clause on state governments) may take private property only for a public purpose, after exercising due process of law, and upon making "just compensation." If an interest is not deemed a "property" right, or the conduct is merely an intentional tort, these limitations do not apply and the doctrine of sovereign immunity precludes relief.[10] Moreover, if the interference does not almost completely make the property valueless, the interference will not be deemed a taking but instead a mere regulation of use.[11] On the other hand, some governmental regulations of property use have been deemed so severe that they have been considered "regulatory takings."[12] Moreover, conduct sometimes deemed only a nuisance or other tort has been held a taking of property where the conduct was sufficiently persistent and severe.[13