Residues of Bacillus thuringiensis eCry3.1Ab protein in corn, in or on the food and feed commodities of corn; corn, field; corn, sweet; and corn, pop are exempt from the requirement of a tolerance when Bacillus thuringiensis eCry3.1Ab protein in corn is used as a plant-incorporated protectant. [77 FR 47291, Aug. 8, 2012]