Pennsylvania Coal In 1922, the Supreme Court held in Pennsylvania Coal Co. v. Mahon that governmental regulations that went "too far" were a taking. Justice Oliver Wendell Holmes, writing for the majority of the court, stated that "[t]he general rule at least is that while property may be regulated to a certain extent, if regulation goes too far it will be recognized as a taking.". Before the court, was a Pennsylvanian law that forbade all mining under inhabited land. The Court held this law to be a taking of the coal owned by the Pennsylvania Coal Company.
pennsylvania coal in 1922 the supreme court held in pennsylvania coal co v mahon that governmental regulations that went "too far" were a taking justice oliver wendell holmes writing for the majority of the court stated that "[t]he general rule at least is that while property may be regulated to a certain extent if regulation goes too far it will be recognized as a taking" before the court was a pennsylvanian law that forbade all mining under inhabited land the court held this law to be a taking of the coal owned by the pennsylvania coal company