The honor system is administered by students through the Executive Committee of the Student Body (and has been since 1905). Any student found guilty of an Honor Violation by his or her peers is subject to a single sanction: expulsion. The honor system is defined solely by students, and there is an appeal process. Appeals are heard by juries composed of students drawn randomly by the University Registrar. A formal assessment of the honor system's "White Book", occasionally including referenda, is held every three years to review the tenets of the honor system. Overwhelmingly, students continue to support the honor system and its single sanction, and they and alumni point to the honor system as one of the distinctive marks they carry with them from their W&L experience.