21 CFR § 556.273 - Famphur.

(a) [Reserved]

(b) Tolerances. The tolerance for famphur including its oxygen analog is:

(1) Cattle. Edible tissues (excluding milk): 0.1 ppm.

(2) [Reserved]

(c) Related conditions of use. See §§ 520.1242g, 524.900, and 558.254 of this chapter.