StacksVerified U.S. regulatory reference

21 CFR §556.168

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)[Reserved]
  2. (b)Tolerances. The tolerances for coumaphos (measured as coumaphos and its oxygen analog, O,O-diethyl O-3- chloro-4-methyl-2-oxo-2 H-1- benzopyran-7-yl phosphate) are:
    1. (1)Chickens.
      1. (i)Edible tissues (excluding eggs): 1 ppm.
      2. (ii)Eggs: 0.1 ppm.
    2. (2)[Reserved]
  3. (c)Related conditions of use. See § 558.185 of this chapter.