Colorado state senator introduces bill to label genetically modified foods (February 9, 2001 -- Cropchoice news)-- Colorado State Sen. Ron Tupa, D-Boulder, earlier this week introduced legislation requiring the labeling of genetically engineered foods and foods containing transgenic ingredients. The Rocky Mountain Farmers Union, which represents 22,000 farmers statewide, supports the bill. "We need to tell customers how their food is produced and where it's coming from," said Dave Carter, president of the Union. For him, labeling will help consumers to make informed choices. To that end, he noted, the Colorado House Agricultural Committee yesterday approved a bill requiring food labels based on country of origin.