21 C.F.R. § 556.100
Carbadox.
Cite as 21 C.F.R. § 556.100 (2026)
(a) [Reserved]
(b)
Tolerances.
The tolerance for quinoxaline-2-carboxylic acid (marker residue) is:
(1)
Swine.
Liver (target tissue): 30 ppb.
(2) [Reserved]
(c)
Related conditions of use.
See § 558.115 of this chapter.
- Cross-references to the CFR
- 558.115