HARRISBURG — Gov. Tom Wolf’s signature is on legislation that changes how stalking and harassment laws apply during organized labor disputes.

Wolf signed it Thursday, despite opposition from most of his fellow Democrats in the Legislature. It takes effect in 60 days.

The bill eliminates exceptions in current law that had permitted those acts during labor disputes, but it keeps exemptions for “constitutionally protected activity.”

It completely eliminates an exception for threatening to use weapons of mass destruction.