October 22, 2014 9:01 AM EDT

The Stanley brothers of Colorado grow a strain of cannabis called Charlotte’s Web on a farm near Wray, Colo. An oil made from the plant is being used to treat children with epilepsy in Colorado and California and is in high demand throughout the country. Until this year, the Stanleys cultivated and sold Charlotte’s Web as medical marijuana. But because the plant meets the legal definition of hemp, containing less than 0.3 percent THC, the Stanleys are hoping they will be legally allowed to ship Charlotte’s Web oil across state lines.

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