556.540—Progesterone.
No residues of progesterone are permitted in excess of the following increments above the concentrations of progesterone naturally present in untreated animals:
(a)
In uncooked edible tissues of steers and calves:
(1)
3 parts per billion for muscle.
(2)
12 parts per billion for fat.
(3)
9 parts per billion for kidney.
(4)
6 parts per billion for liver.
Code of Federal Regulations
[49 FR 13873, Apr. 9, 1984, as amended at 76 FR 16290, Mar. 23, 2011]