The Supreme Court of the United States has special rules for "amicus curiae" briefs sought to be filed in cases pending before it. Supreme Court Rule 37 states, in part, such a brief should cover "relevant matter" not dealt with by the parties which "may be of considerable help". The cover of an "amicus" brief must identify which party the brief is supporting, or if the brief supports only affirmance or reversal. The Court also requires that, "inter alia", all non-governmental amici identify those providing a monetary contribution to the preparation or submission of the brief. Briefs must be prepared in booklet format, and 40 copies must be served with the Court.