You have a few facts incorrect.  The lab is a private lab that is affiliated with the anti-GMO groups.  Hardly independent or highly respected in proper science circles.  The FDA made no such determination.  The only group to make such a claim is IARC (a subgroup of the WHO) and even the WHO has countered that opinion.  The head of h IARC also works with a anti-pesticide NGO, again hardly independent.  The state and federal authorities do have jurisdiction over the land use.