The Supreme Court of Japan is the highest court in Japan, composed of fifteen justices. The Chief Justice is nominated by the Cabinet and appointed to office by the Emperor, while associate justices are appointed by the Cabinet in attestation of the Emperor. The Judiciary Act fixes the total number of justices at 15, but allows the Court itself to specify how many justices sit on a petty bench. By law, at least ten out of the fifteen justices must have either ten years of combined experience as judges, or twenty years of combined experience as judges, lawyers, or professors.