[Code of Federal Regulations]
[Title 9, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 9CFR311.25]

[Page 139]
 
                  TITLE 9--ANIMALS AND ANIMAL PRODUCTS
 
     CHAPTER III--FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF 
                               AGRICULTURE
 
PART 311_DISPOSAL OF DISEASED OR OTHERWISE ADULTERATED CARCASSES
AND PARTS--Table of Contents
 
Sec. 311.25  Parasites not transmissible to man; tapeworm cysts in 
sheep; hydatid cysts; flukes; gid bladder-worms.

    (a) In the disposal of carcasses, edible organs, and other parts of 
carcasses showing evidence of infestation with parasites not 
transmissible to man, the following general rules shall govern except as 
otherwise provided in this section: If the lesions are localized in such 
manner and are of such character that the parasites and the lesions 
caused by them can be completely removed, the nonaffected portion of the 
carcass, organ, or other part of the carcass may be passed for human 
food after the removal and condemnation of the affected portions. If an 
organ or other part of a carcass shows numerous lesions caused by 
parasites, or if the character of the infestation is such that complete 
extirpation of the parasitic infestation or invasion renders the part in 
any way unfit for human food, the affected part shall be condemned. If 
parasites are found to be distributed in a carcass in such a manner or 
to be of such character that their removal and the removal of the 
lesions caused by them is impracticable, no part of the carcass shall be 
passed for human food. If the infestation is excessive, the carcass 
shall be condemned. If the infestation is moderate, the carcass may be 
passed for cooking, but in case such carcass is not cooked as required 
by part 315 of this subchapter, it shall be condemned.
    (b) In the case of sheep carcasses affected with tapeworm cysts 
(Cysticercus ovis, so-called sheep measles, not transmissible to man), 
such carcasses may be passed for human food after the removal and 
condemnation of the affected portions: Provided, however, That if, upon 
the final inspection of sheep carcasses retained on account of measles, 
the total number of cysts found embedded in muscular tissue, or in 
immediate relation with muscular tissue, excluding the heart, exceeds 
five, the entire carcass shall be condemned, or such carcass shall be 
heated throughout to a temperature of at least 140 [deg]F. After removal 
and condemnation of all affected portions.
    (c) Carcasses found infested with gid bladder-worms (Coenurus 
cerebralis, Multiceps multiceps) may be passed for human food after 
condemnation of the affected organ (brain or spinal cord).
    (d) Organs or other parts of carcasses infested with hydatid cysts 
(echinococus) shall be condemned.
    (e) Livers infested with flukes or fringed tapeworms shall be 
condemned.