The Constitution – Article I, section 10, clause 1

State Treaties

“No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marque and Reprisal…”

State Coinage

“No State shall…coin Money; emit Bills of Credit; make any Thing but gold and silver Coin a Tender in Payment of Debts…”

State Bill of Attainder and Ex Post Facto Law

“No State shall…pass any Bill of Attainder, ex post facto Law…”

Obligation of Contract

“No State shall…pass any…Law impairing the Obligation of Contracts…”

State Title of Nobility

“No State shall…grant any Title of Nobility.”