"A genetic engineer has to get a permit from the USDA for field tests, and, after several years of trials, petition for deregulation of the crop. If the crop is pest-resistant, the EPA regulates it as pesticide, and demands more data. Finally, the FDA evaluates the plant for safety and nutritional content." p.3
Testing isn't explicit or standardized, USDA approves under the assumption that the company has tested p.3
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