Full faith and credit- Full faith and credit shall be given in each state to the public acts, records, and judicial proceedings of every other state. The citizens of each state shall be entitled to all privileges and immunities of citizens in all states.A person charged in any state with treason, felony, or other crime, and flees from justice, and is found in another state, shall on demand of the executive authority of the state from which he fled, be delivered to the state having jurisdiction of the crime.

Federal state compact- This article states that any state can create a Compact to congress in order to get things done for the country as whole.

Equality of the states- Equality of the states is the fact that all states are created equal and they must all respect each others decisions. As well as all new states must follow the same rules and jurisdictions as the old states and that all states must follow the same type of government to the extent which the Constitution states.

Model Acts and interstate compacts- Are used by all states it basically falls under the category of a Federal State Compacts, however the model acts and interstate compacts are narrowed down to states and specific things that are needed.