The Grocery Manufacturers Association will sue the state of Vermont in the coming weeks to overturn a precedent-setting GMO labeling measure signed into law Thursday, it said.

Deemed by GMA as "critically flawed," the law requires disclosure of foods containing genetically modified ingredients, beginning in 2016.

“Consumers who prefer to avoid GM ingredients have the option to choose from an array of products already in the marketplace labeled ‘certified organic,’” said GMA in a statement. “The government therefore has no compelling interest in warning consumers about foods containing GM ingredients, making this law’s legality suspect at best.”

In anticipation of a legal challenge, Vermont officials built a $1.5 million legal defense fund into the measure, to be paid for with settlements won by the state, according to reports.

GMA backs a federal bill that would preempt states from legislative efforts to require labeling of GM foods.

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