This Law Firm Publication by Ford & Harrison LLP discusses a recent decision by the Washington State Supreme Court holding that an ordinance that increased the minimum wage to $15 an hour for hospitality and transportation industry employees in the city of SeaTac, Washington can be applied to employees at the SeaTac Airport. In a 5-4 decision the court found that the ordinance, known as Proposition 1, did not conflict with state law and was not preempted by federal labor law, the federal Airline Deregulation Act or the dormant commerce clause. The court's decision upholding Proposition 1 did not address whether its decision applied retroactively to January 1, 2014, when the ordinance took effect.