This regulation establishes time-limited tolerances for the combined residues of fluroxypyr 1-methylheptyl ester and its metabolite fluroxypyr, free and conjugated, all expressed as fluroxypyr in or on grass, forage and grass, hay and modifies the existing permanent tolerances for milk and for kidney of cattle, goat, hog, horse, and sheep. 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 pastures and rangeland. This regulation establishes maximum permissible levels for residues of fluroxypyr 1-methylheptyl ester and its metabolite fluroxypyr, free and conjugated, all expressed as fluroxypyr in these food commodities. The tolerances will expire and are revoked on June 30, 2003.