556.60—Arsenic.

Tolerances for total residues of combined arsenic (calculated as As) in food are established as follows:
(a) In edible tissues and in eggs of chickens and turkeys:
(1) 0.5 part per million in uncooked muscle tissue.
(2) 2 parts per million in uncooked edible by-products.
(3) 0.5 part per million in eggs.
(b) In edible tissues of swine:
(1) 2 parts per million in uncooked liver and kidney.
(2) 0.5 part per million in uncooked muscle tissue and by-products other than liver and kidney.