21 U.S.C. § 641 : US Code - Section 641: Prohibition of subchapter I inspection of articles not intended for use as human food; denaturation or other identification prior to distribution in commerce; inedible articles

Search 21 U.S.C. § 641 : US Code - Section 641: Prohibition of subchapter I inspection of articles not intended for use as human food; denaturation or other identification prior to distribution in commerce; inedible articles

Inspection shall not be provided under subchapter I of this
chapter at any establishment for the slaughter of cattle, sheep,
swine, goats, horses, mules, or other equines, or the preparation
of any carcasses or parts or products of such animals, which are
not intended for use as human food, but such articles shall, prior
to their offer for sale or transportation in commerce, unless
naturally inedible by humans, be denatured or otherwise identified
as prescribed by regulations of the Secretary to deter their use
for human food. No person, firm, or corporation shall buy, sell,
transport, or offer for sale or transportation, or receive for
transportation, in commerce, or import, any carcasses, parts
thereof, meat or meat food products of any such animals, which are
not intended for use as human food unless they are denatured or
otherwise identified as required by the regulations of the
Secretary or are naturally inedible by humans.