WASHINGTON -- Without comment, the U.S. Supreme Court on Monday denied The Venetian's appeal of last year's ruling by a federal circuit court that the casino violated U.S. labor law in March 1999.

The Supreme Court's refusal to hear the appeal means the casino will be required to post a notice on its premises for 60 days acknowledging it violated federal labor law and will no longer interfere with employees' right to organize into a union.

The Venetian failed to comply with the National Labor Relations Act when its employees used loudspeakers to warn more than 1,000 members of the Culinary and Bartenders unions against rallying on a sidewalk outside the casino.

"The Venetian has no property right to the sidewalk that permits it to prevent people, like the demonstrators here, from exercising their First Amendment rights by airing to the public and to prospective employees grievances about The Venetian's employment practices," according to a decision issued in May 2007 by the U.S. Circuit Court of Appeals in Washington, D.C.