EPA is revoking certain tolerances for the herbicides bromoxynil, diclofop-methyl, and paraquat; the fungicide etridiazole (terrazole); the miticides dicofol and propargite; and the plant growth regulator and herbicide diquat. Also, EPA is removing duplicate tolerances for the herbicides bromoxynil, paraquat, and picloram; the fumigant phosphine; the miticide dicofol; and the insecticides fenbutatin-oxide and hydramethylnon. In addition, EPA is modifying certain tolerances for the insecticide hydramethylnon; the herbicides bromoxynil, paraquat, and triclopyr; the fungicides etridiazole, folpet, and triphenyltin hydroxide (TPTH); the miticides dicofol and propargite; and the plant growth regulator and herbicide diquat. Moreover, EPA is establishing new tolerances for the herbicides bromoxynil, paraquat, and picloram; the fungicides etridiazole, folpet, and TPTH; the miticides dicofol and propargite; the insecticide fenbutatin-oxide; and the plant growth regulator and herbicide diquat. The regulatory actions in this document are follow-up to the Agency's reregistration program under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and reassessment program under the Federal Food, Drug, and Cosmetic Act (FFDCA) section 408(q).