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

Enforcement of the Corporate Transparency Act, which requires millions of companies to disclose their true ownership, remains on hold despite a U.S. Supreme Court ruling in favor of the Treasury Department.

The Supreme Court on Thursday afternoon granted the federal government’s request to be allowed to enforce a federal anti-money-laundering law while the government’s appeal moves forward in the conservative U.