The Corporate Transparency Act, which requires businesses to disclose ownership information, was blocked by a federal judge as beyond Congress’s authority.

The U.S. Supreme Court cleared the way on Thursday for the enforcement of an anti-money laundering federal law that requires corporate entities to disclose the identities of their real beneficial owners to the U.

The Supreme Court has revived a requirement that owners of millions of small businesses register with an arm of the Treasury Department under an anti-money laundering law.

The act aims to stop fraud and money laundering by requiring most U.S. businesses to disclose which owners control more than 25 percent of the stock or equity.