Except as provided in §325.11(b) of this subchapter, rendered animal fat derived from condemned or other inedible materials at official establishments shall be denatured to effectually distinguish it from an edible product, either with low grade offal during the rendering or by adding to, and mixing thoroughly with, such fat, denaturing oil, No. 2 fuel oil, or brucine dissolved in a mixture of alcohol and pine oil or oil of rosemary, and may be shipped in commerce in accordance with §325.11(c) of this subchapter.

[35 FR 15575, Oct. 3, 1970, as amended at 53 FR 24679, June 30, 1988]