This document establishes tolerances for residues of the dessicant, defoliant, and herbicide paraquat (1,1'-dimethyl-4,4'- bipyridinium ion) derived from the application of either the bis(methyl sulfate) or dichloride salt (both calculated as the cation) in or on the raw agricultural commodities (RACs) rice grain and rice straw. Zeneca Agricultural Products requested the establishment of these maximum permissible residues of the herbicide.