Section 556.495 - Oxfendazole(a)Acceptable daily intake (ADI). The ADI for total residue of oxfendazole is 7 [MICRO]g/kg of body weight per day.(b)Tolerances. The tolerance for fenbendazole (marker residue) is:(1)Cattle. Liver (target tissue): 0.8 ppm.(c)Related conditions of use. See §§ 520.1629 and 520.1630 of this chapter.