Twin Falls, Idaho ( KMVT-TV / KSVT-TV ) The deadline is up.
According to the Food and Drug Administration, to use the gluten free label, products must now have an undetectable level of gluten.
Products cannot have any ingredient containing wheat, rye, barley, or any of their derivatives.
Last August, the FDA said food manufacturers had one year to meet the requirements.
If manufacturers don't, they will be subject to regulatory action from the FDA.
The ruling applies to packaged foods only.
The FDA suggests that consumers remain inquisitive and ask questions about their food in restaurants and other establishments.