The Office of Environmental Health Hazard Assessment proposes to establish specific regulatory levels posing no significant risk for 1,2-dichloropropane and naphthalene. OEHHA also proposes to establish specific regulatory levels for 1,2-dibromo-3-chloropropane, disodium cyanodithioimidocarbonate, ethyl dipropylthiocarbamate, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, methyl bromide as a structural fumigant, sodium dimethyldithiocarbamate and thiophanate-methy.