The animal rights organization People for the Ethical Treatment of Animals applauded the high court's decision.
"The food industry has failed to end the ban on the sale of foie gras, which is made from tormented birds' diseased livers and the production of which late 9th Circuit Judge Harry Pregerson -- one of the members of the three-judge panel who had heard the case in 2017 -- explicitly stated is `absolutely cruel,"' PETA President Ingrid Newkirk said in a statement. "Now that California can enforce this ban, PETA urges diners to blow the whistle on any restaurant that's caught serving this illegal and hideously produced substance."
The state law went into effect in 2012 banning the sale of foie gras, but it was challenged in Los Angeles federal court by an association of foie gras producers in New York and Canada, along with a Hermosa Beach restaurant operator, who argued that the measure was vaguely written and interfered with state commerce.
A 2017 ruling by the Pasadena-based 9th U.S. Circuit Court of Appeals upheld the statute.
According to the law, a restaurant caught serving the gourmet item in California could be fined up to $1,000.