EPA is revoking certain tolerances/tolerance exemptions for the fungicides pentachloronitrobenzene and triadimenol; the herbicides ametryn, fluazifop-p-butyl, and prometryn; the insecticides amitraz and mineral oil; the defoliant/desiccant sodium chlorate; and the fungicide/algicide/herbicide coppers. Also, EPA is modifying certain tolerances for the fungicide bitertanol and the insecticide malathion. In addition, EPA is establishing new tolerances/tolerance exemptions for the fungicides coppers and pentachloronitrobenzene; the herbicide prometryn; the insecticide malathion; and the defoliant/desiccant sodium chlorate; and revising the tolerance expression for the ammonium salts of higher fatty acids (ammonium soap salts). The regulatory actions finalized in this document are in follow-up to the Agency's reregistration program under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and tolerance reassessment program under the Federal Food, Drug, and Cosmetic Act (FFDCA), section 408(q).