Supporters of labeling for foods with genetically modified ingredients in Maine are pushing for a revised state law that would not depend on passage of laws in nearby Vermont, Massachusetts, New Hampshire and Connecticut.
Maine already passed a law a year ago that will require labels if the four other states pass similar measures.
The trigger was meant to ensure local grocery stores wouldn't have to shoulder all the cost of making the labels. With more states adopting the measure at the same time, manufacturers would more likely chip in to accommodate grocers.
But some lawmakers want to sever those contingencies and let the state's law stand on its own.
Maine's current law would also be repealed automatically if a total of five state fail to pass such laws by 2018.
The proposed amendment would also remove the sunset clause.