This regulation extends time-limited tolerances for residues of the herbicide safener HOE-107892 and its metabolites HOE-113225, HOE- 109453, and HOE-094270 in or on barley grain at 0.05 part per million (ppm), barley hay at 0.5 ppm; barley straw at 0.1 ppm; and the processed by-products of barley grain: pearled barley at 1.0 ppm, bran at 0.4 ppm, and flour at 0.1 ppm; wheat grain a 0.01 ppm; and wheat straw at 0.05 ppm for an additional 23-month period. These tolerances will expire and be revoked on December 31, 2001. This action is in response to EPA's granting of an emergency exemption under section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act authorizing use of the pesticide on wheat and barley. Section 408(l)(6) of the Federal Food, Drug, and Cosmetic Act requires EPA to establish a time- limited tolerance or exemption from the requirement for a tolerance for pesticide chemical residues in food that will result from the use of a pesticide under an emergency exemption granted by EPA under section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act.