(1) The several courts of a State are, within the limits of their several jurisdictions, whether those limits are as to subject matter or otherwise, but disregarding any limitation that exists by reason of a place being a Commonwealth place, invested with federal jurisdiction in all matters arising under the applied provisions as having, or as having had, effect in or in relation to a Commonwealth place.
(2) The regulations that may be made for the purpose of subsection ( 6) of section 4 of this Act include regulations having the effect that provisions as modified by the regulations make provision for and in relation to investing a court of a State with federal jurisdiction, whether within the limits of its jurisdiction or otherwise.