Court Hierarchy in the legal system in the United States

“Court level or hierarchy defines to a great degree the extent to which a decision by one court will have a binding effect on another court. The federal court system, for instance, is based on a three-tiered structure, in which the United States District Courts are the trial-level courts; the United States Court of Appeals is the first level court of appeal; and the United States Supreme Court is the final arbiter of the law.”

American Legal Systems: A Resource and Reference Guide