States have different rules about living wills, so they don't have to follow an Illinois living will.
It is more likely that another state will follow your living will if you sign it in front of two witnesses and a notary. Your two witnesses and the notary also need to sign the living will.
When a notary signs your living will, it proves to everyone else that you signed it.
Illinois will follow a living will that was correctly created in a different state.
Updated: January 2017