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

The law requires potentially millions of local businesses to disclose their “beneficial owners,” or anyone with at least a 25% interest or who controls the business, to a federal regulator.

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.