CFR › Title 21 › Part 556 › §556.3821 CFR §556.38Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)[Reserved](b)Tolerances. The tolerance for amoxicillin is:(1)Cattle. Edible tissues: 0.01 ppm.(2)[Reserved](c)Related conditions of use. See §§ 520.88d, 520.88e, 522.88, and 526.88 of this chapter.