Chapter XXV: Section X

I. No state shall enter into any treaty, alliance, or confederation,
grant letters of marque and reprisal; coin money; emit bills of
credit; make any thing but gold and silver coin a tender in payment of
debts; pass any bill of attainder, ex post facto law, or law impairing
the obligation of contracts, or grant any title of nobility.

II. No state shall, without the consent of congress, lay any imposts
or duties on imports or exports, except what may be absolutely
necessary for executing its inspection laws: and the net produce of
all duties and imposts, laid by any state on imports and exports,
shall be for the use of the treasury of the United State, and all such
laws shall be subject to the revision and control of congress. No
state shall, without the consent of congress, lay any duty of tonnage,
keep troops, or ships of war, in time of peace, enter into any
agreement or compact with another state, or with a foreign power, or
engage in war, unless actually invaded, or in such imminent danger as
will not admit of delay.

ARTICLE II.