PENNSYLVANIA, May 3 - 521 U.S. 898 (1997), when the Court held: "The Federal

Government may neither issue directives requiring the States

to address particular problems, nor command the States'

officers, or those of their political subdivisions, to

administer or enforce a federal regulatory program."

(6) The anti-commandeering principles recognized by the

Supreme Court in Printz v. United States are predicated upon

the advice of James Madison, who in Federalist #46 advised a

"refusal to co-operate with the officers of the Union" in

response to either unconstitutional Federal measures or

constitutional but unpopular Federal measures.

Section 4. Prohibitions.

(a) State actors.--A Federal action relating to a firearm,

magazine of a firearm, accessory and ammunition, intended to

restrict possession, transfer or use of a firearm, magazine of a

firearm, accessory and ammunition shall be unenforceable by a

State actor in this Commonwealth.

(b) Enforceability.--A Federal action created or taking

effect after December 31, 2020, shall be unenforceable within

this Commonwealth if the Federal action attempts to register,

restrict or ban the ownership or purchase of a firearm, magazine

of a firearm, firearm accessory or ammunition, or to reclassify

the firearm, accessory or magazine ex post facto where the

result is to prohibit or restrict continued ownership or common

use. An attempt by the Federal government to create within this

Commonwealth a registry regarding a firearm, component or

accessory, ammunition or magazine shall be prohibited.

(c) Duty, immunity and penalty.--

(1) An official, agent or employee of the Federal

Government, or a person who works for the Federal Government

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