CFR /  Title 40  /  Part 174  /  Sec. 174.527 Phosphomannose isomerase in all plants; exemption from

Residues of the phosphomannose isomerase (PMI) enzyme in plants are exempt from the requirement of a tolerance when used as plant-incorporated protectant inert ingredients in all food commodities. [72 FR 20435, Apr. 25, 2007]