Section 556.445 - Nicarbazin(a)Acceptable daily intake (ADI). The ADI for total residues of nicarbazin (4,4'-dinitrocarbanilide and 2-hydroxy-4,6-dimethylpyrimidine) is 200 [MICRO]g/kg of body weight per day.(b)Tolerances. The tolerance for 4,4'-dinitrocarbanilide (marker residue) is: (1)Chickens. Liver (target tissue): 52 ppm.(c)Related conditions of use. See §§ 558.364 and 558.366 of this chapter. 83 FR 64741 , 12/18/2018; as amended at 84 FR 8974 , 3/13/2019; 84 FR 32993 , 9/9/2019