Federal tribunals in the United States are those tribunals established by the federal government of the United States for the purpose of resolving disputes involving or arising under federal laws, including questions about the constitutionality of such laws. Such tribunals include both Article III tribunals (federal courts) as well as adjudicative entities which are classified as Article I or Article IV tribunals. Some of the latter entities are also formally denominated as courts, but they do not enjoy certain protections afforded to Article III courts. These tribunals are described in reference to the article of the United States Constitution from which the tribunal's authority stems. The use of the term "tribunal" in this context as a blanket term to encompass both courts and other adju