StacksVerified U.S. regulatory reference

21 CFR §556.163

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Acceptable daily intake (ADI). The ADI for total residue of clorsulon is 8 µg/kg of body weight per day.
  2. (b)Tolerances. The tolerances for clorsulon (marker residue) are:
    1. (1)Cattle.
      1. (i)Kidney (target tissue): 1.0 ppm.
      2. (ii)Muscle: 0.1 ppm.
    2. (2)[Reserved]
  3. (c)Related conditions of use. See §§ 520.462 and 522.1193 of this chapter.