18 U.S.C. § 333 — Mutilation of national bank obligations

This law makes it a crime to damage U.S. banking currency on purpose, in a way meant to make it unusable. It covers a bank bill, draft, note, or other evidence of debt issued by a national banking association, a Federal Reserve bank, or the Federal Reserve System. It's illegal to mutilate, cut, deface, disfigure, or perforate one of these, or to unite or cement pieces together, or to do any other thing to it — as long as it's done with intent to render that bill, draft, note, or other evidence of debt unfit to be reissued. Anyone who does this can be fined under this title, or imprisoned for up to six months, or both.